21756568

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{113}}^1\times {\mathrm{587}}^1$

素因数の和:747

約数の個数: 32

約数和(自身を含む): 42230160

約数和(自身を除く): 20473592

約数列:

[1, 2, 4, 8, 41, 82, 113, 164, 226, 328, 452, 587, 904, 1174, 2348, 4633, 4696, 9266, 18532, 24067, 37064, 48134, 66331, 96268, 132662, 192536, 265324, 530648, 2719571, 5439142, 10878284, 21756568]

約数ペア:

[(1, 21756568), (2, 10878284), (4, 5439142), (8, 2719571), (41, 530648), (82, 265324), (113, 192536), (164, 132662), (226, 96268), (328, 66331), (452, 48134), (587, 37064), (904, 24067), (1174, 18532), (2348, 9266), (4633, 4696)]