17903988

素因数分解:

$2^2\times 3^2\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{263}}^1$

素因数の和:365

約数の個数: 72

約数和(自身を含む): 47663616

約数和(自身を除く): 29759628

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 31, 36, 61, 62, 93, 122, 124, 183, 186, 244, 263, 279, 366, 372, 526, 549, 558, 732, 789, 1052, 1098, 1116, 1578, 1891, 2196, 2367, 3156, 3782, 4734, 5673, 7564, 8153, 9468, 11346, 16043, 16306, 17019, 22692, 24459, 32086, 32612, 34038, 48129, 48918, 64172, 68076, 73377, 96258, 97836, 144387, 146754, 192516, 288774, 293508, 497333, 577548, 994666, 1491999, 1989332, 2983998, 4475997, 5967996, 8951994, 17903988]

約数ペア:

[(1, 17903988), (2, 8951994), (3, 5967996), (4, 4475997), (6, 2983998), (9, 1989332), (12, 1491999), (18, 994666), (31, 577548), (36, 497333), (61, 293508), (62, 288774), (93, 192516), (122, 146754), (124, 144387), (183, 97836), (186, 96258), (244, 73377), (263, 68076), (279, 64172), (366, 48918), (372, 48129), (526, 34038), (549, 32612), (558, 32086), (732, 24459), (789, 22692), (1052, 17019), (1098, 16306), (1116, 16043), (1578, 11346), (1891, 9468), (2196, 8153), (2367, 7564), (3156, 5673), (3782, 4734)]