21255848

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{2141}}^1$

素因数の和:2237

約数の個数: 32

約数和(自身を含む): 42797160

約数和(自身を除く): 21541312

約数列:

[1, 2, 4, 8, 17, 34, 68, 73, 136, 146, 292, 584, 1241, 2141, 2482, 4282, 4964, 8564, 9928, 17128, 36397, 72794, 145588, 156293, 291176, 312586, 625172, 1250344, 2656981, 5313962, 10627924, 21255848]

約数ペア:

[(1, 21255848), (2, 10627924), (4, 5313962), (8, 2656981), (17, 1250344), (34, 625172), (68, 312586), (73, 291176), (136, 156293), (146, 145588), (292, 72794), (584, 36397), (1241, 17128), (2141, 9928), (2482, 8564), (4282, 4964)]