31479721

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{61}}^1\times {\mathrm{107}}^1$

素因数の和:241

約数の個数: 32

約数和(自身を含む): 40497408

約数和(自身を除く): 9017687

約数列:

[1, 7, 13, 53, 61, 91, 107, 371, 427, 689, 749, 793, 1391, 3233, 4823, 5551, 5671, 6527, 9737, 22631, 39697, 42029, 45689, 73723, 84851, 294203, 345931, 516061, 593957, 2421517, 4497103, 31479721]

約数ペア:

[(1, 31479721), (7, 4497103), (13, 2421517), (53, 593957), (61, 516061), (91, 345931), (107, 294203), (371, 84851), (427, 73723), (689, 45689), (749, 42029), (793, 39697), (1391, 22631), (3233, 9737), (4823, 6527), (5551, 5671)]