21713520

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{90473}}^1$

素因数の和:90489

約数の個数: 40

約数和(自身を含む): 67312656

約数和(自身を除く): 45599136

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 90473, 180946, 271419, 361892, 452365, 542838, 723784, 904730, 1085676, 1357095, 1447568, 1809460, 2171352, 2714190, 3618920, 4342704, 5428380, 7237840, 10856760, 21713520]

約数ペア:

[(1, 21713520), (2, 10856760), (3, 7237840), (4, 5428380), (5, 4342704), (6, 3618920), (8, 2714190), (10, 2171352), (12, 1809460), (15, 1447568), (16, 1357095), (20, 1085676), (24, 904730), (30, 723784), (40, 542838), (48, 452365), (60, 361892), (80, 271419), (120, 180946), (240, 90473)]