21655590

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{137}}^1\times {\mathrm{479}}^1$

素因数の和:637

約数の個数: 64

約数和(自身を含む): 57231360

約数和(自身を除く): 35575770

約数列:

[1, 2, 3, 5, 6, 10, 11, 15, 22, 30, 33, 55, 66, 110, 137, 165, 274, 330, 411, 479, 685, 822, 958, 1370, 1437, 1507, 2055, 2395, 2874, 3014, 4110, 4521, 4790, 5269, 7185, 7535, 9042, 10538, 14370, 15070, 15807, 22605, 26345, 31614, 45210, 52690, 65623, 79035, 131246, 158070, 196869, 328115, 393738, 656230, 721853, 984345, 1443706, 1968690, 2165559, 3609265, 4331118, 7218530, 10827795, 21655590]

約数ペア:

[(1, 21655590), (2, 10827795), (3, 7218530), (5, 4331118), (6, 3609265), (10, 2165559), (11, 1968690), (15, 1443706), (22, 984345), (30, 721853), (33, 656230), (55, 393738), (66, 328115), (110, 196869), (137, 158070), (165, 131246), (274, 79035), (330, 65623), (411, 52690), (479, 45210), (685, 31614), (822, 26345), (958, 22605), (1370, 15807), (1437, 15070), (1507, 14370), (2055, 10538), (2395, 9042), (2874, 7535), (3014, 7185), (4110, 5269), (4521, 4790)]