21001301096

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{191}}^1\times {\mathrm{271}}^1\times {\mathrm{1237}}^1$

素因数の和:1746

約数の個数: 64

約数和(自身を含む): 40731586560

約数和(自身を除く): 19730285464

約数列:

[1, 2, 4, 8, 41, 82, 164, 191, 271, 328, 382, 542, 764, 1084, 1237, 1528, 2168, 2474, 4948, 7831, 9896, 11111, 15662, 22222, 31324, 44444, 50717, 51761, 62648, 88888, 101434, 103522, 202868, 207044, 236267, 335227, 405736, 414088, 472534, 670454, 945068, 1340908, 1890136, 2122201, 2681816, 4244402, 8488804, 9686947, 13744307, 16977608, 19373894, 27488614, 38747788, 54977228, 64028357, 77495576, 109954456, 128056714, 256113428, 512226856, 2625162637, 5250325274, 10500650548, 21001301096]

約数ペア:

[(1, 21001301096), (2, 10500650548), (4, 5250325274), (8, 2625162637), (41, 512226856), (82, 256113428), (164, 128056714), (191, 109954456), (271, 77495576), (328, 64028357), (382, 54977228), (542, 38747788), (764, 27488614), (1084, 19373894), (1237, 16977608), (1528, 13744307), (2168, 9686947), (2474, 8488804), (4948, 4244402), (7831, 2681816), (9896, 2122201), (11111, 1890136), (15662, 1340908), (22222, 945068), (31324, 670454), (44444, 472534), (50717, 414088), (51761, 405736), (62648, 335227), (88888, 236267), (101434, 207044), (103522, 202868)]