21133785

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{967}}^1$

素因数の和:1053

約数の個数: 32

約数和(自身を含む): 35684352

約数和(自身を除く): 14550567

約数列:

[1, 3, 5, 15, 31, 47, 93, 141, 155, 235, 465, 705, 967, 1457, 2901, 4371, 4835, 7285, 14505, 21855, 29977, 45449, 89931, 136347, 149885, 227245, 449655, 681735, 1408919, 4226757, 7044595, 21133785]

約数ペア:

[(1, 21133785), (3, 7044595), (5, 4226757), (15, 1408919), (31, 681735), (47, 449655), (93, 227245), (141, 149885), (155, 136347), (235, 89931), (465, 45449), (705, 29977), (967, 21855), (1457, 14505), (2901, 7285), (4371, 4835)]