21088705

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{241}}^1$

素因数の和:337

約数の個数: 32

約数和(自身を含む): 29132928

約数和(自身を除く): 8044223

約数列:

[1, 5, 11, 37, 43, 55, 185, 215, 241, 407, 473, 1205, 1591, 2035, 2365, 2651, 7955, 8917, 10363, 13255, 17501, 44585, 51815, 87505, 98087, 113993, 383431, 490435, 569965, 1917155, 4217741, 21088705]

約数ペア:

[(1, 21088705), (5, 4217741), (11, 1917155), (37, 569965), (43, 490435), (55, 383431), (185, 113993), (215, 98087), (241, 87505), (407, 51815), (473, 44585), (1205, 17501), (1591, 13255), (2035, 10363), (2365, 8917), (2651, 7955)]