20211766458

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{151}}^1\times {\mathrm{181}}^1\times {\mathrm{499}}^1$

素因数の和:868

約数の個数: 128

約数和(自身を含む): 46475520000

約数和(自身を除く): 26263753542

約数列:

[1, 2, 3, 6, 13, 19, 26, 38, 39, 57, 78, 114, 151, 181, 247, 302, 362, 453, 494, 499, 543, 741, 906, 998, 1086, 1482, 1497, 1963, 2353, 2869, 2994, 3439, 3926, 4706, 5738, 5889, 6487, 6878, 7059, 8607, 9481, 10317, 11778, 12974, 14118, 17214, 18962, 19461, 20634, 27331, 28443, 37297, 38922, 44707, 54662, 56886, 74594, 75349, 81993, 89414, 90319, 111891, 123253, 134121, 150698, 163986, 180638, 223782, 226047, 246506, 268242, 270957, 355303, 369759, 452094, 519289, 541914, 710606, 739518, 979537, 1038578, 1065909, 1174147, 1431631, 1557867, 1716061, 1959074, 2131818, 2348294, 2863262, 2938611, 3115734, 3432122, 3522441, 4294893, 5148183, 5877222, 6750757, 7044882, 8589786, 10296366, 13501514, 13638169, 18611203, 20252271, 22308793, 27276338, 37222406, 40504542, 40914507, 44617586, 55833609, 66926379, 81829014, 111667218, 133852758, 177296197, 259125211, 354592394, 518250422, 531888591, 777375633, 1063777182, 1554751266, 3368627743, 6737255486, 10105883229, 20211766458]

約数ペア:

[(1, 20211766458), (2, 10105883229), (3, 6737255486), (6, 3368627743), (13, 1554751266), (19, 1063777182), (26, 777375633), (38, 531888591), (39, 518250422), (57, 354592394), (78, 259125211), (114, 177296197), (151, 133852758), (181, 111667218), (247, 81829014), (302, 66926379), (362, 55833609), (453, 44617586), (494, 40914507), (499, 40504542), (543, 37222406), (741, 27276338), (906, 22308793), (998, 20252271), (1086, 18611203), (1482, 13638169), (1497, 13501514), (1963, 10296366), (2353, 8589786), (2869, 7044882), (2994, 6750757), (3439, 5877222), (3926, 5148183), (4706, 4294893), (5738, 3522441), (5889, 3432122), (6487, 3115734), (6878, 2938611), (7059, 2863262), (8607, 2348294), (9481, 2131818), (10317, 1959074), (11778, 1716061), (12974, 1557867), (14118, 1431631), (17214, 1174147), (18962, 1065909), (19461, 1038578), (20634, 979537), (27331, 739518), (28443, 710606), (37297, 541914), (38922, 519289), (44707, 452094), (54662, 369759), (56886, 355303), (74594, 270957), (75349, 268242), (81993, 246506), (89414, 226047), (90319, 223782), (111891, 180638), (123253, 163986), (134121, 150698)]