21463826

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{79}}^1\times {\mathrm{131}}^1$

素因数の和:290

約数の個数: 32

約数和(自身を含む): 35354880

約数和(自身を除く): 13891054

約数列:

[1, 2, 17, 34, 61, 79, 122, 131, 158, 262, 1037, 1343, 2074, 2227, 2686, 4454, 4819, 7991, 9638, 10349, 15982, 20698, 81923, 135847, 163846, 175933, 271694, 351866, 631289, 1262578, 10731913, 21463826]

約数ペア:

[(1, 21463826), (2, 10731913), (17, 1262578), (34, 631289), (61, 351866), (79, 271694), (122, 175933), (131, 163846), (158, 135847), (262, 81923), (1037, 20698), (1343, 15982), (2074, 10349), (2227, 9638), (2686, 7991), (4454, 4819)]