21752068

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{563}}^1\times {\mathrm{743}}^1$

素因数の和:1323

約数の個数: 24

約数和(自身を含む): 41122368

約数和(自身を除く): 19370300

約数列:

[1, 2, 4, 13, 26, 52, 563, 743, 1126, 1486, 2252, 2972, 7319, 9659, 14638, 19318, 29276, 38636, 418309, 836618, 1673236, 5438017, 10876034, 21752068]

約数ペア:

[(1, 21752068), (2, 10876034), (4, 5438017), (13, 1673236), (26, 836618), (52, 418309), (563, 38636), (743, 29276), (1126, 19318), (1486, 14638), (2252, 9659), (2972, 7319)]