18742432

素因数分解:

$2^5\times {\mathrm{17}}^1\times {\mathrm{131}}^1\times {\mathrm{263}}^1$

素因数の和:421

約数の個数: 48

約数和(自身を含む): 39517632

約数和(自身を除く): 20775200

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 68, 131, 136, 262, 263, 272, 524, 526, 544, 1048, 1052, 2096, 2104, 2227, 4192, 4208, 4454, 4471, 8416, 8908, 8942, 17816, 17884, 34453, 35632, 35768, 68906, 71264, 71536, 137812, 143072, 275624, 551248, 585701, 1102496, 1171402, 2342804, 4685608, 9371216, 18742432]

約数ペア:

[(1, 18742432), (2, 9371216), (4, 4685608), (8, 2342804), (16, 1171402), (17, 1102496), (32, 585701), (34, 551248), (68, 275624), (131, 143072), (136, 137812), (262, 71536), (263, 71264), (272, 68906), (524, 35768), (526, 35632), (544, 34453), (1048, 17884), (1052, 17816), (2096, 8942), (2104, 8908), (2227, 8416), (4192, 4471), (4208, 4454)]