20921495416

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{2749}}^1\times {\mathrm{23203}}^1$

素因数の和:25999

約数の個数: 32

約数和(自身を含む): 40200930000

約数和(自身を除く): 19279434584

約数列:

[1, 2, 4, 8, 41, 82, 164, 328, 2749, 5498, 10996, 21992, 23203, 46406, 92812, 112709, 185624, 225418, 450836, 901672, 951323, 1902646, 3805292, 7610584, 63785047, 127570094, 255140188, 510280376, 2615186927, 5230373854, 10460747708, 20921495416]

約数ペア:

[(1, 20921495416), (2, 10460747708), (4, 5230373854), (8, 2615186927), (41, 510280376), (82, 255140188), (164, 127570094), (328, 63785047), (2749, 7610584), (5498, 3805292), (10996, 1902646), (21992, 951323), (23203, 901672), (46406, 450836), (92812, 225418), (112709, 185624)]