21901110

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{499}}^1$

素因数の和:546

約数の個数: 128

約数和(自身を含む): 69120000

約数和(自身を除く): 47218890

約数列:

[1, 2, 3, 5, 6, 7, 10, 11, 14, 15, 19, 21, 22, 30, 33, 35, 38, 42, 55, 57, 66, 70, 77, 95, 105, 110, 114, 133, 154, 165, 190, 209, 210, 231, 266, 285, 330, 385, 399, 418, 462, 499, 570, 627, 665, 770, 798, 998, 1045, 1155, 1254, 1330, 1463, 1497, 1995, 2090, 2310, 2495, 2926, 2994, 3135, 3493, 3990, 4389, 4990, 5489, 6270, 6986, 7315, 7485, 8778, 9481, 10479, 10978, 14630, 14970, 16467, 17465, 18962, 20958, 21945, 27445, 28443, 32934, 34930, 38423, 43890, 47405, 52395, 54890, 56886, 66367, 76846, 82335, 94810, 104291, 104790, 115269, 132734, 142215, 164670, 192115, 199101, 208582, 230538, 284430, 312873, 331835, 384230, 398202, 521455, 576345, 625746, 663670, 730037, 995505, 1042910, 1152690, 1460074, 1564365, 1991010, 2190111, 3128730, 3650185, 4380222, 7300370, 10950555, 21901110]

約数ペア:

[(1, 21901110), (2, 10950555), (3, 7300370), (5, 4380222), (6, 3650185), (7, 3128730), (10, 2190111), (11, 1991010), (14, 1564365), (15, 1460074), (19, 1152690), (21, 1042910), (22, 995505), (30, 730037), (33, 663670), (35, 625746), (38, 576345), (42, 521455), (55, 398202), (57, 384230), (66, 331835), (70, 312873), (77, 284430), (95, 230538), (105, 208582), (110, 199101), (114, 192115), (133, 164670), (154, 142215), (165, 132734), (190, 115269), (209, 104790), (210, 104291), (231, 94810), (266, 82335), (285, 76846), (330, 66367), (385, 56886), (399, 54890), (418, 52395), (462, 47405), (499, 43890), (570, 38423), (627, 34930), (665, 32934), (770, 28443), (798, 27445), (998, 21945), (1045, 20958), (1155, 18962), (1254, 17465), (1330, 16467), (1463, 14970), (1497, 14630), (1995, 10978), (2090, 10479), (2310, 9481), (2495, 8778), (2926, 7485), (2994, 7315), (3135, 6986), (3493, 6270), (3990, 5489), (4389, 4990)]