21931400

素因数分解:

$2^3\times 5^2\times {\mathrm{53}}^1\times {\mathrm{2069}}^1$

素因数の和:2138

約数の個数: 48

約数和(自身を含む): 51977700

約数和(自身を除く): 30046300

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 53, 100, 106, 200, 212, 265, 424, 530, 1060, 1325, 2069, 2120, 2650, 4138, 5300, 8276, 10345, 10600, 16552, 20690, 41380, 51725, 82760, 103450, 109657, 206900, 219314, 413800, 438628, 548285, 877256, 1096570, 2193140, 2741425, 4386280, 5482850, 10965700, 21931400]

約数ペア:

[(1, 21931400), (2, 10965700), (4, 5482850), (5, 4386280), (8, 2741425), (10, 2193140), (20, 1096570), (25, 877256), (40, 548285), (50, 438628), (53, 413800), (100, 219314), (106, 206900), (200, 109657), (212, 103450), (265, 82760), (424, 51725), (530, 41380), (1060, 20690), (1325, 16552), (2069, 10600), (2120, 10345), (2650, 8276), (4138, 5300)]