21006906195

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{79}}^1\times {\mathrm{239}}^1\times {\mathrm{613}}^1$

素因数の和:961

約数の個数: 96

約数和(自身を含む): 37629849600

約数和(自身を除く): 16622943405

約数列:

[1, 3, 5, 11, 15, 33, 55, 79, 121, 165, 237, 239, 363, 395, 605, 613, 717, 869, 1185, 1195, 1815, 1839, 2607, 2629, 3065, 3585, 4345, 6743, 7887, 9195, 9559, 13035, 13145, 18881, 20229, 28677, 28919, 33715, 39435, 47795, 48427, 56643, 74173, 86757, 94405, 101145, 143385, 144595, 145281, 146507, 207691, 222519, 242135, 283215, 370865, 433785, 439521, 532697, 623073, 726405, 732535, 1038455, 1112595, 1598091, 1611577, 2197605, 2284601, 2663485, 3115365, 4834731, 5859667, 6853803, 7990455, 8057885, 11423005, 11574053, 17579001, 17727347, 24173655, 29298335, 34269015, 34722159, 53182041, 57870265, 87895005, 88636735, 127314583, 173610795, 265910205, 381943749, 636572915, 1400460413, 1909718745, 4201381239, 7002302065, 21006906195]

約数ペア:

[(1, 21006906195), (3, 7002302065), (5, 4201381239), (11, 1909718745), (15, 1400460413), (33, 636572915), (55, 381943749), (79, 265910205), (121, 173610795), (165, 127314583), (237, 88636735), (239, 87895005), (363, 57870265), (395, 53182041), (605, 34722159), (613, 34269015), (717, 29298335), (869, 24173655), (1185, 17727347), (1195, 17579001), (1815, 11574053), (1839, 11423005), (2607, 8057885), (2629, 7990455), (3065, 6853803), (3585, 5859667), (4345, 4834731), (6743, 3115365), (7887, 2663485), (9195, 2284601), (9559, 2197605), (13035, 1611577), (13145, 1598091), (18881, 1112595), (20229, 1038455), (28677, 732535), (28919, 726405), (33715, 623073), (39435, 532697), (47795, 439521), (48427, 433785), (56643, 370865), (74173, 283215), (86757, 242135), (94405, 222519), (101145, 207691), (143385, 146507), (144595, 145281)]