21319980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{32303}}^1$

素因数の和:32326

約数の個数: 48

約数和(自身を含む): 65124864

約数和(自身を除く): 43804884

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 33, 44, 55, 60, 66, 110, 132, 165, 220, 330, 660, 32303, 64606, 96909, 129212, 161515, 193818, 323030, 355333, 387636, 484545, 646060, 710666, 969090, 1065999, 1421332, 1776665, 1938180, 2131998, 3553330, 4263996, 5329995, 7106660, 10659990, 21319980]

約数ペア:

[(1, 21319980), (2, 10659990), (3, 7106660), (4, 5329995), (5, 4263996), (6, 3553330), (10, 2131998), (11, 1938180), (12, 1776665), (15, 1421332), (20, 1065999), (22, 969090), (30, 710666), (33, 646060), (44, 484545), (55, 387636), (60, 355333), (66, 323030), (110, 193818), (132, 161515), (165, 129212), (220, 96909), (330, 64606), (660, 32303)]