21031670

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{347}}^1$

素因数の和:413

約数の個数: 64

約数和(自身を含む): 45100800

約数和(自身を除く): 24069130

約数列:

[1, 2, 5, 10, 11, 19, 22, 29, 38, 55, 58, 95, 110, 145, 190, 209, 290, 319, 347, 418, 551, 638, 694, 1045, 1102, 1595, 1735, 2090, 2755, 3190, 3470, 3817, 5510, 6061, 6593, 7634, 10063, 12122, 13186, 19085, 20126, 30305, 32965, 38170, 50315, 60610, 65930, 72523, 100630, 110693, 145046, 191197, 221386, 362615, 382394, 553465, 725230, 955985, 1106930, 1911970, 2103167, 4206334, 10515835, 21031670]

約数ペア:

[(1, 21031670), (2, 10515835), (5, 4206334), (10, 2103167), (11, 1911970), (19, 1106930), (22, 955985), (29, 725230), (38, 553465), (55, 382394), (58, 362615), (95, 221386), (110, 191197), (145, 145046), (190, 110693), (209, 100630), (290, 72523), (319, 65930), (347, 60610), (418, 50315), (551, 38170), (638, 32965), (694, 30305), (1045, 20126), (1102, 19085), (1595, 13186), (1735, 12122), (2090, 10063), (2755, 7634), (3190, 6593), (3470, 6061), (3817, 5510)]