21579390

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{34253}}^1$

素因数の和:34273

約数の個数: 48

約数和(自身を含む): 64123488

約数和(自身を除く): 42544098

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 45, 63, 70, 90, 105, 126, 210, 315, 630, 34253, 68506, 102759, 171265, 205518, 239771, 308277, 342530, 479542, 513795, 616554, 719313, 1027590, 1198855, 1438626, 1541385, 2157939, 2397710, 3082770, 3596565, 4315878, 7193130, 10789695, 21579390]

約数ペア:

[(1, 21579390), (2, 10789695), (3, 7193130), (5, 4315878), (6, 3596565), (7, 3082770), (9, 2397710), (10, 2157939), (14, 1541385), (15, 1438626), (18, 1198855), (21, 1027590), (30, 719313), (35, 616554), (42, 513795), (45, 479542), (63, 342530), (70, 308277), (90, 239771), (105, 205518), (126, 171265), (210, 102759), (315, 68506), (630, 34253)]