21138756

素因数分解:

$2^2\times 3^1\times {\mathrm{59}}^1\times {\mathrm{73}}^1\times {\mathrm{409}}^1$

素因数の和:548

約数の個数: 48

約数和(自身を含む): 50971200

約数和(自身を除く): 29832444

約数列:

[1, 2, 3, 4, 6, 12, 59, 73, 118, 146, 177, 219, 236, 292, 354, 409, 438, 708, 818, 876, 1227, 1636, 2454, 4307, 4908, 8614, 12921, 17228, 24131, 25842, 29857, 48262, 51684, 59714, 72393, 89571, 96524, 119428, 144786, 179142, 289572, 358284, 1761563, 3523126, 5284689, 7046252, 10569378, 21138756]

約数ペア:

[(1, 21138756), (2, 10569378), (3, 7046252), (4, 5284689), (6, 3523126), (12, 1761563), (59, 358284), (73, 289572), (118, 179142), (146, 144786), (177, 119428), (219, 96524), (236, 89571), (292, 72393), (354, 59714), (409, 51684), (438, 48262), (708, 29857), (818, 25842), (876, 24131), (1227, 17228), (1636, 12921), (2454, 8614), (4307, 4908)]