18666986

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{157}}^1\times {\mathrm{269}}^1$

素因数の和:458

約数の個数: 32

約数和(自身を含む): 32250960

約数和(自身を除く): 13583974

約数列:

[1, 2, 13, 17, 26, 34, 157, 221, 269, 314, 442, 538, 2041, 2669, 3497, 4082, 4573, 5338, 6994, 9146, 34697, 42233, 59449, 69394, 84466, 118898, 549029, 717961, 1098058, 1435922, 9333493, 18666986]

約数ペア:

[(1, 18666986), (2, 9333493), (13, 1435922), (17, 1098058), (26, 717961), (34, 549029), (157, 118898), (221, 84466), (269, 69394), (314, 59449), (442, 42233), (538, 34697), (2041, 9146), (2669, 6994), (3497, 5338), (4082, 4573)]