20401185

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{331}}^1\times {\mathrm{587}}^1$

素因数の和:933

約数の個数: 32

約数和(自身を含む): 37481472

約数和(自身を除く): 17080287

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 331, 587, 993, 1655, 1761, 2317, 2935, 4109, 4965, 6951, 8805, 11585, 12327, 20545, 34755, 61635, 194297, 582891, 971485, 1360079, 2914455, 4080237, 6800395, 20401185]

約数ペア:

[(1, 20401185), (3, 6800395), (5, 4080237), (7, 2914455), (15, 1360079), (21, 971485), (35, 582891), (105, 194297), (331, 61635), (587, 34755), (993, 20545), (1655, 12327), (1761, 11585), (2317, 8805), (2935, 6951), (4109, 4965)]