20977268

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{3701}}^1$

素因数の和:3827

約数の個数: 24

約数和(自身を含む): 39907560

約数和(自身を除く): 18930292

約数列:

[1, 2, 4, 13, 26, 52, 109, 218, 436, 1417, 2834, 3701, 5668, 7402, 14804, 48113, 96226, 192452, 403409, 806818, 1613636, 5244317, 10488634, 20977268]

約数ペア:

[(1, 20977268), (2, 10488634), (4, 5244317), (13, 1613636), (26, 806818), (52, 403409), (109, 192452), (218, 96226), (436, 48113), (1417, 14804), (2834, 7402), (3701, 5668)]