21590971801

素因数分解:

$7^1\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{631}}^1\times {\mathrm{2309}}^1$

素因数の和:3049

約数の個数: 32

約数和(自身を含む): 25928179200

約数和(自身を除く): 4337207399

約数列:

[1, 7, 29, 73, 203, 511, 631, 2117, 2309, 4417, 14819, 16163, 18299, 46063, 66961, 128093, 168557, 322441, 468727, 1179899, 1335827, 1456979, 4888153, 9350789, 10198853, 34217071, 42252391, 106359467, 295766737, 744516269, 3084424543, 21590971801]

約数ペア:

[(1, 21590971801), (7, 3084424543), (29, 744516269), (73, 295766737), (203, 106359467), (511, 42252391), (631, 34217071), (2117, 10198853), (2309, 9350789), (4417, 4888153), (14819, 1456979), (16163, 1335827), (18299, 1179899), (46063, 468727), (66961, 322441), (128093, 168557)]