21377200

素因数分解:

$2^4\times 5^2\times {\mathrm{13}}^1\times {\mathrm{4111}}^1$

素因数の和:4142

約数の個数: 60

約数和(自身を含む): 55322848

約数和(自身を除く): 33945648

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 40, 50, 52, 65, 80, 100, 104, 130, 200, 208, 260, 325, 400, 520, 650, 1040, 1300, 2600, 4111, 5200, 8222, 16444, 20555, 32888, 41110, 53443, 65776, 82220, 102775, 106886, 164440, 205550, 213772, 267215, 328880, 411100, 427544, 534430, 822200, 855088, 1068860, 1336075, 1644400, 2137720, 2672150, 4275440, 5344300, 10688600, 21377200]

約数ペア:

[(1, 21377200), (2, 10688600), (4, 5344300), (5, 4275440), (8, 2672150), (10, 2137720), (13, 1644400), (16, 1336075), (20, 1068860), (25, 855088), (26, 822200), (40, 534430), (50, 427544), (52, 411100), (65, 328880), (80, 267215), (100, 213772), (104, 205550), (130, 164440), (200, 106886), (208, 102775), (260, 82220), (325, 65776), (400, 53443), (520, 41110), (650, 32888), (1040, 20555), (1300, 16444), (2600, 8222), (4111, 5200)]