21408530

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{1361}}^1$

素因数の和:1403

約数の個数: 48

約数和(自身を含む): 45648792

約数和(自身を除く): 24240262

約数列:

[1, 2, 5, 10, 11, 13, 22, 26, 55, 65, 110, 121, 130, 143, 242, 286, 605, 715, 1210, 1361, 1430, 1573, 2722, 3146, 6805, 7865, 13610, 14971, 15730, 17693, 29942, 35386, 74855, 88465, 149710, 164681, 176930, 194623, 329362, 389246, 823405, 973115, 1646810, 1946230, 2140853, 4281706, 10704265, 21408530]

約数ペア:

[(1, 21408530), (2, 10704265), (5, 4281706), (10, 2140853), (11, 1946230), (13, 1646810), (22, 973115), (26, 823405), (55, 389246), (65, 329362), (110, 194623), (121, 176930), (130, 164681), (143, 149710), (242, 88465), (286, 74855), (605, 35386), (715, 29942), (1210, 17693), (1361, 15730), (1430, 14971), (1573, 13610), (2722, 7865), (3146, 6805)]