21943880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{719}}^1$

素因数の和:846

約数の個数: 64

約数和(自身を含む): 57024000

約数和(自身を除く): 35080120

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 109, 140, 218, 280, 436, 545, 719, 763, 872, 1090, 1438, 1526, 2180, 2876, 3052, 3595, 3815, 4360, 5033, 5752, 6104, 7190, 7630, 10066, 14380, 15260, 20132, 25165, 28760, 30520, 40264, 50330, 78371, 100660, 156742, 201320, 313484, 391855, 548597, 626968, 783710, 1097194, 1567420, 2194388, 2742985, 3134840, 4388776, 5485970, 10971940, 21943880]

約数ペア:

[(1, 21943880), (2, 10971940), (4, 5485970), (5, 4388776), (7, 3134840), (8, 2742985), (10, 2194388), (14, 1567420), (20, 1097194), (28, 783710), (35, 626968), (40, 548597), (56, 391855), (70, 313484), (109, 201320), (140, 156742), (218, 100660), (280, 78371), (436, 50330), (545, 40264), (719, 30520), (763, 28760), (872, 25165), (1090, 20132), (1438, 15260), (1526, 14380), (2180, 10066), (2876, 7630), (3052, 7190), (3595, 6104), (3815, 5752), (4360, 5033)]