21091350

素因数分解:

$2^1\times 3^1\times 5^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{379}}^1$

素因数の和:454

約数の個数: 96

約数和(自身を含む): 61067520

約数和(自身を除く): 39976170

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 25, 30, 35, 42, 50, 53, 70, 75, 105, 106, 150, 159, 175, 210, 265, 318, 350, 371, 379, 525, 530, 742, 758, 795, 1050, 1113, 1137, 1325, 1590, 1855, 1895, 2226, 2274, 2650, 2653, 3710, 3790, 3975, 5306, 5565, 5685, 7950, 7959, 9275, 9475, 11130, 11370, 13265, 15918, 18550, 18950, 20087, 26530, 27825, 28425, 39795, 40174, 55650, 56850, 60261, 66325, 79590, 100435, 120522, 132650, 140609, 198975, 200870, 281218, 301305, 397950, 421827, 502175, 602610, 703045, 843654, 1004350, 1406090, 1506525, 2109135, 3013050, 3515225, 4218270, 7030450, 10545675, 21091350]

約数ペア:

[(1, 21091350), (2, 10545675), (3, 7030450), (5, 4218270), (6, 3515225), (7, 3013050), (10, 2109135), (14, 1506525), (15, 1406090), (21, 1004350), (25, 843654), (30, 703045), (35, 602610), (42, 502175), (50, 421827), (53, 397950), (70, 301305), (75, 281218), (105, 200870), (106, 198975), (150, 140609), (159, 132650), (175, 120522), (210, 100435), (265, 79590), (318, 66325), (350, 60261), (371, 56850), (379, 55650), (525, 40174), (530, 39795), (742, 28425), (758, 27825), (795, 26530), (1050, 20087), (1113, 18950), (1137, 18550), (1325, 15918), (1590, 13265), (1855, 11370), (1895, 11130), (2226, 9475), (2274, 9275), (2650, 7959), (2653, 7950), (3710, 5685), (3790, 5565), (3975, 5306)]