21783970

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{9857}}^1$

素因数の和:9894

約数の個数: 32

約数和(自身を含む): 44715888

約数和(自身を除く): 22931918

約数列:

[1, 2, 5, 10, 13, 17, 26, 34, 65, 85, 130, 170, 221, 442, 1105, 2210, 9857, 19714, 49285, 98570, 128141, 167569, 256282, 335138, 640705, 837845, 1281410, 1675690, 2178397, 4356794, 10891985, 21783970]

約数ペア:

[(1, 21783970), (2, 10891985), (5, 4356794), (10, 2178397), (13, 1675690), (17, 1281410), (26, 837845), (34, 640705), (65, 335138), (85, 256282), (130, 167569), (170, 128141), (221, 98570), (442, 49285), (1105, 19714), (2210, 9857)]