21165430

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{41}}^1$

素因数の和:110

約数の個数: 96

約数和(自身を含む): 48390048

約数和(自身を除く): 27224618

約数列:

[1, 2, 5, 10, 11, 13, 19, 22, 26, 38, 41, 55, 65, 82, 95, 110, 130, 143, 190, 205, 209, 247, 286, 361, 410, 418, 451, 494, 533, 715, 722, 779, 902, 1045, 1066, 1235, 1430, 1558, 1805, 2090, 2255, 2470, 2665, 2717, 3610, 3895, 3971, 4510, 4693, 5330, 5434, 5863, 7790, 7942, 8569, 9386, 10127, 11726, 13585, 14801, 17138, 19855, 20254, 23465, 27170, 29315, 29602, 39710, 42845, 46930, 50635, 51623, 58630, 74005, 85690, 101270, 103246, 111397, 148010, 162811, 192413, 222794, 258115, 325622, 384826, 516230, 556985, 814055, 962065, 1113970, 1628110, 1924130, 2116543, 4233086, 10582715, 21165430]

約数ペア:

[(1, 21165430), (2, 10582715), (5, 4233086), (10, 2116543), (11, 1924130), (13, 1628110), (19, 1113970), (22, 962065), (26, 814055), (38, 556985), (41, 516230), (55, 384826), (65, 325622), (82, 258115), (95, 222794), (110, 192413), (130, 162811), (143, 148010), (190, 111397), (205, 103246), (209, 101270), (247, 85690), (286, 74005), (361, 58630), (410, 51623), (418, 50635), (451, 46930), (494, 42845), (533, 39710), (715, 29602), (722, 29315), (779, 27170), (902, 23465), (1045, 20254), (1066, 19855), (1235, 17138), (1430, 14801), (1558, 13585), (1805, 11726), (2090, 10127), (2255, 9386), (2470, 8569), (2665, 7942), (2717, 7790), (3610, 5863), (3895, 5434), (3971, 5330), (4510, 4693)]