18224848

素因数分解:

$2^4\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{263}}^1$

素因数の和:403

約数の個数: 40

約数和(自身を含む): 36533376

約数和(自身を除く): 18308528

約数列:

[1, 2, 4, 8, 16, 61, 71, 122, 142, 244, 263, 284, 488, 526, 568, 976, 1052, 1136, 2104, 4208, 4331, 8662, 16043, 17324, 18673, 32086, 34648, 37346, 64172, 69296, 74692, 128344, 149384, 256688, 298768, 1139053, 2278106, 4556212, 9112424, 18224848]

約数ペア:

[(1, 18224848), (2, 9112424), (4, 4556212), (8, 2278106), (16, 1139053), (61, 298768), (71, 256688), (122, 149384), (142, 128344), (244, 74692), (263, 69296), (284, 64172), (488, 37346), (526, 34648), (568, 32086), (976, 18673), (1052, 17324), (1136, 16043), (2104, 8662), (4208, 4331)]