18564008

素因数分解:

$2^3\times {\mathrm{61}}^1\times {\mathrm{109}}^1\times {\mathrm{349}}^1$

素因数の和:525

約数の個数: 32

約数和(自身を含む): 35805000

約数和(自身を除く): 17240992

約数列:

[1, 2, 4, 8, 61, 109, 122, 218, 244, 349, 436, 488, 698, 872, 1396, 2792, 6649, 13298, 21289, 26596, 38041, 42578, 53192, 76082, 85156, 152164, 170312, 304328, 2320501, 4641002, 9282004, 18564008]

約数ペア:

[(1, 18564008), (2, 9282004), (4, 4641002), (8, 2320501), (61, 304328), (109, 170312), (122, 152164), (218, 85156), (244, 76082), (349, 53192), (436, 42578), (488, 38041), (698, 26596), (872, 21289), (1396, 13298), (2792, 6649)]