20246876

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{61}}^1\times {\mathrm{491}}^1$

素因数の和:582

約数の個数: 36

約数和(自身を含む): 39075624

約数和(自身を除く): 18828748

約数列:

[1, 2, 4, 13, 26, 52, 61, 122, 169, 244, 338, 491, 676, 793, 982, 1586, 1964, 3172, 6383, 10309, 12766, 20618, 25532, 29951, 41236, 59902, 82979, 119804, 165958, 331916, 389363, 778726, 1557452, 5061719, 10123438, 20246876]

約数ペア:

[(1, 20246876), (2, 10123438), (4, 5061719), (13, 1557452), (26, 778726), (52, 389363), (61, 331916), (122, 165958), (169, 119804), (244, 82979), (338, 59902), (491, 41236), (676, 29951), (793, 25532), (982, 20618), (1586, 12766), (1964, 10309), (3172, 6383)]