21747570

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{55763}}^1$

素因数の和:55786

約数の個数: 32

約数和(自身を含む): 56210112

約数和(自身を除く): 34462542

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 55763, 111526, 167289, 278815, 334578, 557630, 724919, 836445, 1449838, 1672890, 2174757, 3624595, 4349514, 7249190, 10873785, 21747570]

約数ペア:

[(1, 21747570), (2, 10873785), (3, 7249190), (5, 4349514), (6, 3624595), (10, 2174757), (13, 1672890), (15, 1449838), (26, 836445), (30, 724919), (39, 557630), (65, 334578), (78, 278815), (130, 167289), (195, 111526), (390, 55763)]