20377721

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{3671}}^1$

素因数の和:3752

約数の個数: 16

約数和(自身を含む): 25498368

約数和(自身を除く): 5120647

約数列:

[1, 7, 13, 61, 91, 427, 793, 3671, 5551, 25697, 47723, 223931, 334061, 1567517, 2911103, 20377721]

約数ペア:

[(1, 20377721), (7, 2911103), (13, 1567517), (61, 334061), (91, 223931), (427, 47723), (793, 25697), (3671, 5551)]