21086792

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{1213}}^1$

素因数の和:1313

約数の個数: 32

約数和(自身を含む): 41300280

約数和(自身を除く): 20213488

約数列:

[1, 2, 4, 8, 41, 53, 82, 106, 164, 212, 328, 424, 1213, 2173, 2426, 4346, 4852, 8692, 9704, 17384, 49733, 64289, 99466, 128578, 198932, 257156, 397864, 514312, 2635849, 5271698, 10543396, 21086792]

約数ペア:

[(1, 21086792), (2, 10543396), (4, 5271698), (8, 2635849), (41, 514312), (53, 397864), (82, 257156), (106, 198932), (164, 128578), (212, 99466), (328, 64289), (424, 49733), (1213, 17384), (2173, 9704), (2426, 8692), (4346, 4852)]