21858008

素因数分解:

$2^3\times {\mathrm{47}}^1\times {\mathrm{61}}^1\times {\mathrm{953}}^1$

素因数の和:1067

約数の個数: 32

約数和(自身を含む): 42586560

約数和(自身を除く): 20728552

約数列:

[1, 2, 4, 8, 47, 61, 94, 122, 188, 244, 376, 488, 953, 1906, 2867, 3812, 5734, 7624, 11468, 22936, 44791, 58133, 89582, 116266, 179164, 232532, 358328, 465064, 2732251, 5464502, 10929004, 21858008]

約数ペア:

[(1, 21858008), (2, 10929004), (4, 5464502), (8, 2732251), (47, 465064), (61, 358328), (94, 232532), (122, 179164), (188, 116266), (244, 89582), (376, 58133), (488, 44791), (953, 22936), (1906, 11468), (2867, 7624), (3812, 5734)]