21338712

素因数分解:

$2^3\times 3^2\times {\mathrm{109}}^1\times {\mathrm{2719}}^1$

素因数の和:2840

約数の個数: 48

約数和(自身を含む): 58344000

約数和(自身を除く): 37005288

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 109, 218, 327, 436, 654, 872, 981, 1308, 1962, 2616, 2719, 3924, 5438, 7848, 8157, 10876, 16314, 21752, 24471, 32628, 48942, 65256, 97884, 195768, 296371, 592742, 889113, 1185484, 1778226, 2370968, 2667339, 3556452, 5334678, 7112904, 10669356, 21338712]

約数ペア:

[(1, 21338712), (2, 10669356), (3, 7112904), (4, 5334678), (6, 3556452), (8, 2667339), (9, 2370968), (12, 1778226), (18, 1185484), (24, 889113), (36, 592742), (72, 296371), (109, 195768), (218, 97884), (327, 65256), (436, 48942), (654, 32628), (872, 24471), (981, 21752), (1308, 16314), (1962, 10876), (2616, 8157), (2719, 7848), (3924, 5438)]