19919484

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1373}}^1$

素因数の和:1427

約数の個数: 72

約数和(自身を含む): 56015232

約数和(自身を除く): 36095748

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 31, 36, 39, 52, 62, 78, 93, 117, 124, 156, 186, 234, 279, 372, 403, 468, 558, 806, 1116, 1209, 1373, 1612, 2418, 2746, 3627, 4119, 4836, 5492, 7254, 8238, 12357, 14508, 16476, 17849, 24714, 35698, 42563, 49428, 53547, 71396, 85126, 107094, 127689, 160641, 170252, 214188, 255378, 321282, 383067, 510756, 553319, 642564, 766134, 1106638, 1532268, 1659957, 2213276, 3319914, 4979871, 6639828, 9959742, 19919484]

約数ペア:

[(1, 19919484), (2, 9959742), (3, 6639828), (4, 4979871), (6, 3319914), (9, 2213276), (12, 1659957), (13, 1532268), (18, 1106638), (26, 766134), (31, 642564), (36, 553319), (39, 510756), (52, 383067), (62, 321282), (78, 255378), (93, 214188), (117, 170252), (124, 160641), (156, 127689), (186, 107094), (234, 85126), (279, 71396), (372, 53547), (403, 49428), (468, 42563), (558, 35698), (806, 24714), (1116, 17849), (1209, 16476), (1373, 14508), (1612, 12357), (2418, 8238), (2746, 7254), (3627, 5492), (4119, 4836)]