20675899748

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{449437}}^1$

素因数の和:449532

約数の個数: 48

約数和(自身を含む): 43491216384

約数和(自身を除く): 22815316636

約数列:

[1, 2, 4, 7, 14, 28, 31, 53, 62, 106, 124, 212, 217, 371, 434, 742, 868, 1484, 1643, 3286, 6572, 11501, 23002, 46004, 449437, 898874, 1797748, 3146059, 6292118, 12584236, 13932547, 23820161, 27865094, 47640322, 55730188, 95280644, 97527829, 166741127, 195055658, 333482254, 390111316, 666964508, 738424991, 1476849982, 2953699964, 5168974937, 10337949874, 20675899748]

約数ペア:

[(1, 20675899748), (2, 10337949874), (4, 5168974937), (7, 2953699964), (14, 1476849982), (28, 738424991), (31, 666964508), (53, 390111316), (62, 333482254), (106, 195055658), (124, 166741127), (212, 97527829), (217, 95280644), (371, 55730188), (434, 47640322), (742, 27865094), (868, 23820161), (1484, 13932547), (1643, 12584236), (3286, 6292118), (6572, 3146059), (11501, 1797748), (23002, 898874), (46004, 449437)]