74407921

素因数分解:

$7^2\times {\mathrm{23}}^1\times {\mathrm{103}}^1\times {\mathrm{641}}^1$

素因数の和:781

約数の個数: 24

約数和(自身を含む): 91338624

約数和(自身を除く): 16930703

約数列:

[1, 7, 23, 49, 103, 161, 641, 721, 1127, 2369, 4487, 5047, 14743, 16583, 31409, 66023, 103201, 116081, 462161, 722407, 1518529, 3235127, 10629703, 74407921]

約数ペア:

[(1, 74407921), (7, 10629703), (23, 3235127), (49, 1518529), (103, 722407), (161, 462161), (641, 116081), (721, 103201), (1127, 66023), (2369, 31409), (4487, 16583), (5047, 14743)]