21431025

素因数分解:

$3^2\times 5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{1237}}^1$

素因数の和:1271

約数の個数: 72

約数和(自身を含む): 47895744

約数和(自身を除く): 26464719

約数列:

[1, 3, 5, 7, 9, 11, 15, 21, 25, 33, 35, 45, 55, 63, 75, 77, 99, 105, 165, 175, 225, 231, 275, 315, 385, 495, 525, 693, 825, 1155, 1237, 1575, 1925, 2475, 3465, 3711, 5775, 6185, 8659, 11133, 13607, 17325, 18555, 25977, 30925, 40821, 43295, 55665, 68035, 77931, 92775, 95249, 122463, 129885, 204105, 216475, 278325, 285747, 340175, 389655, 476245, 612315, 649425, 857241, 1020525, 1428735, 1948275, 2381225, 3061575, 4286205, 7143675, 21431025]

約数ペア:

[(1, 21431025), (3, 7143675), (5, 4286205), (7, 3061575), (9, 2381225), (11, 1948275), (15, 1428735), (21, 1020525), (25, 857241), (33, 649425), (35, 612315), (45, 476245), (55, 389655), (63, 340175), (75, 285747), (77, 278325), (99, 216475), (105, 204105), (165, 129885), (175, 122463), (225, 95249), (231, 92775), (275, 77931), (315, 68035), (385, 55665), (495, 43295), (525, 40821), (693, 30925), (825, 25977), (1155, 18555), (1237, 17325), (1575, 13607), (1925, 11133), (2475, 8659), (3465, 6185), (3711, 5775)]