213236785

素因数分解:

$5^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{229}}^1$

素因数の和:409

約数の個数: 32

約数和(自身を含む): 271054080

約数和(自身を除く): 57817295

約数列:

[1, 5, 43, 61, 71, 215, 229, 305, 355, 1145, 2623, 3053, 4331, 9847, 13115, 13969, 15265, 16259, 21655, 49235, 69845, 81295, 186233, 600667, 699137, 931165, 991799, 3003335, 3495685, 4958995, 42647357, 213236785]

約数ペア:

[(1, 213236785), (5, 42647357), (43, 4958995), (61, 3495685), (71, 3003335), (215, 991799), (229, 931165), (305, 699137), (355, 600667), (1145, 186233), (2623, 81295), (3053, 69845), (4331, 49235), (9847, 21655), (13115, 16259), (13969, 15265)]