21000944770

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{613}}^1\times {\mathrm{263533}}^1$

素因数の和:264166

約数の個数: 32

約数和(自身を含む): 40776088752

約数和(自身を除く): 19775143982

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 613, 1226, 3065, 6130, 7969, 15938, 39845, 79690, 263533, 527066, 1317665, 2635330, 3425929, 6851858, 17129645, 34259290, 161545729, 323091458, 807728645, 1615457290, 2100094477, 4200188954, 10500472385, 21000944770]

約数ペア:

[(1, 21000944770), (2, 10500472385), (5, 4200188954), (10, 2100094477), (13, 1615457290), (26, 807728645), (65, 323091458), (130, 161545729), (613, 34259290), (1226, 17129645), (3065, 6851858), (6130, 3425929), (7969, 2635330), (15938, 1317665), (39845, 527066), (79690, 263533)]