21921375

素因数分解:

$3^1\times 5^3\times 7^2\times {\mathrm{1193}}^1$

素因数の和:1225

約数の個数: 48

約数和(自身を含む): 42468192

約数和(自身を除く): 20546817

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 49, 75, 105, 125, 147, 175, 245, 375, 525, 735, 875, 1193, 1225, 2625, 3579, 3675, 5965, 6125, 8351, 17895, 18375, 25053, 29825, 41755, 58457, 89475, 125265, 149125, 175371, 208775, 292285, 447375, 626325, 876855, 1043875, 1461425, 3131625, 4384275, 7307125, 21921375]

約数ペア:

[(1, 21921375), (3, 7307125), (5, 4384275), (7, 3131625), (15, 1461425), (21, 1043875), (25, 876855), (35, 626325), (49, 447375), (75, 292285), (105, 208775), (125, 175371), (147, 149125), (175, 125265), (245, 89475), (375, 58457), (525, 41755), (735, 29825), (875, 25053), (1193, 18375), (1225, 17895), (2625, 8351), (3579, 6125), (3675, 5965)]