21452280

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{3373}}^1$

素因数の和:3440

約数の個数: 64

約数和(自身を含む): 65590560

約数和(自身を除く): 44138280

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 53, 60, 106, 120, 159, 212, 265, 318, 424, 530, 636, 795, 1060, 1272, 1590, 2120, 3180, 3373, 6360, 6746, 10119, 13492, 16865, 20238, 26984, 33730, 40476, 50595, 67460, 80952, 101190, 134920, 178769, 202380, 357538, 404760, 536307, 715076, 893845, 1072614, 1430152, 1787690, 2145228, 2681535, 3575380, 4290456, 5363070, 7150760, 10726140, 21452280]

約数ペア:

[(1, 21452280), (2, 10726140), (3, 7150760), (4, 5363070), (5, 4290456), (6, 3575380), (8, 2681535), (10, 2145228), (12, 1787690), (15, 1430152), (20, 1072614), (24, 893845), (30, 715076), (40, 536307), (53, 404760), (60, 357538), (106, 202380), (120, 178769), (159, 134920), (212, 101190), (265, 80952), (318, 67460), (424, 50595), (530, 40476), (636, 33730), (795, 26984), (1060, 20238), (1272, 16865), (1590, 13492), (2120, 10119), (3180, 6746), (3373, 6360)]