16660245

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{1193}}^1$

素因数の和:1234

約数の個数: 48

約数和(自身を含む): 32667840

約数和(自身を除く): 16007595

約数列:

[1, 3, 5, 7, 15, 19, 21, 35, 49, 57, 95, 105, 133, 147, 245, 285, 399, 665, 735, 931, 1193, 1995, 2793, 3579, 4655, 5965, 8351, 13965, 17895, 22667, 25053, 41755, 58457, 68001, 113335, 125265, 158669, 175371, 292285, 340005, 476007, 793345, 876855, 1110683, 2380035, 3332049, 5553415, 16660245]

約数ペア:

[(1, 16660245), (3, 5553415), (5, 3332049), (7, 2380035), (15, 1110683), (19, 876855), (21, 793345), (35, 476007), (49, 340005), (57, 292285), (95, 175371), (105, 158669), (133, 125265), (147, 113335), (245, 68001), (285, 58457), (399, 41755), (665, 25053), (735, 22667), (931, 17895), (1193, 13965), (1995, 8351), (2793, 5965), (3579, 4655)]