21207108

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{2029}}^1$

素因数の和:2116

約数の個数: 48

約数和(自身を含む): 54111680

約数和(自身を除く): 32904572

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 67, 78, 134, 156, 201, 268, 402, 804, 871, 1742, 2029, 2613, 3484, 4058, 5226, 6087, 8116, 10452, 12174, 24348, 26377, 52754, 79131, 105508, 135943, 158262, 271886, 316524, 407829, 543772, 815658, 1631316, 1767259, 3534518, 5301777, 7069036, 10603554, 21207108]

約数ペア:

[(1, 21207108), (2, 10603554), (3, 7069036), (4, 5301777), (6, 3534518), (12, 1767259), (13, 1631316), (26, 815658), (39, 543772), (52, 407829), (67, 316524), (78, 271886), (134, 158262), (156, 135943), (201, 105508), (268, 79131), (402, 52754), (804, 26377), (871, 24348), (1742, 12174), (2029, 10452), (2613, 8116), (3484, 6087), (4058, 5226)]