21477225

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{3719}}^1$

素因数の和:3750

約数の個数: 48

約数和(自身を含む): 44282880

約数和(自身を除く): 22805655

約数列:

[1, 3, 5, 7, 11, 15, 21, 25, 33, 35, 55, 75, 77, 105, 165, 175, 231, 275, 385, 525, 825, 1155, 1925, 3719, 5775, 11157, 18595, 26033, 40909, 55785, 78099, 92975, 122727, 130165, 204545, 278925, 286363, 390495, 613635, 650825, 859089, 1022725, 1431815, 1952475, 3068175, 4295445, 7159075, 21477225]

約数ペア:

[(1, 21477225), (3, 7159075), (5, 4295445), (7, 3068175), (11, 1952475), (15, 1431815), (21, 1022725), (25, 859089), (33, 650825), (35, 613635), (55, 390495), (75, 286363), (77, 278925), (105, 204545), (165, 130165), (175, 122727), (231, 92975), (275, 78099), (385, 55785), (525, 40909), (825, 26033), (1155, 18595), (1925, 11157), (3719, 5775)]