21879830

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{16451}}^1$

素因数の和:16484

約数の個数: 32

約数和(自身を含む): 47381760

約数和(自身を除く): 25501930

約数列:

[1, 2, 5, 7, 10, 14, 19, 35, 38, 70, 95, 133, 190, 266, 665, 1330, 16451, 32902, 82255, 115157, 164510, 230314, 312569, 575785, 625138, 1151570, 1562845, 2187983, 3125690, 4375966, 10939915, 21879830]

約数ペア:

[(1, 21879830), (2, 10939915), (5, 4375966), (7, 3125690), (10, 2187983), (14, 1562845), (19, 1151570), (35, 625138), (38, 575785), (70, 312569), (95, 230314), (133, 164510), (190, 115157), (266, 82255), (665, 32902), (1330, 16451)]