20910564

素因数分解:

$2^2\times 3^2\times {\mathrm{19}}^2\times {\mathrm{1609}}^1$

素因数の和:1657

約数の個数: 54

約数和(自身を含む): 55820310

約数和(自身を除く): 34909746

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 36, 38, 57, 76, 114, 171, 228, 342, 361, 684, 722, 1083, 1444, 1609, 2166, 3218, 3249, 4332, 4827, 6436, 6498, 9654, 12996, 14481, 19308, 28962, 30571, 57924, 61142, 91713, 122284, 183426, 275139, 366852, 550278, 580849, 1100556, 1161698, 1742547, 2323396, 3485094, 5227641, 6970188, 10455282, 20910564]

約数ペア:

[(1, 20910564), (2, 10455282), (3, 6970188), (4, 5227641), (6, 3485094), (9, 2323396), (12, 1742547), (18, 1161698), (19, 1100556), (36, 580849), (38, 550278), (57, 366852), (76, 275139), (114, 183426), (171, 122284), (228, 91713), (342, 61142), (361, 57924), (684, 30571), (722, 28962), (1083, 19308), (1444, 14481), (1609, 12996), (2166, 9654), (3218, 6498), (3249, 6436), (4332, 4827)]