16904265

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{109}}^1\times {\mathrm{211}}^1$

素因数の和:342

約数の個数: 48

約数和(自身を含む): 31901760

約数和(自身を除く): 14997495

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 105, 109, 147, 211, 245, 327, 545, 633, 735, 763, 1055, 1477, 1635, 2289, 3165, 3815, 4431, 5341, 7385, 10339, 11445, 16023, 22155, 22999, 26705, 31017, 51695, 68997, 80115, 114995, 155085, 160993, 344985, 482979, 804965, 1126951, 2414895, 3380853, 5634755, 16904265]

約数ペア:

[(1, 16904265), (3, 5634755), (5, 3380853), (7, 2414895), (15, 1126951), (21, 804965), (35, 482979), (49, 344985), (105, 160993), (109, 155085), (147, 114995), (211, 80115), (245, 68997), (327, 51695), (545, 31017), (633, 26705), (735, 22999), (763, 22155), (1055, 16023), (1477, 11445), (1635, 10339), (2289, 7385), (3165, 5341), (3815, 4431)]