19726278

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{277}}^1$

素因数の和:389

約数の個数: 64

約数和(自身を含む): 47077632

約数和(自身を除く): 27351354

約数列:

[1, 2, 3, 6, 11, 13, 22, 26, 33, 39, 66, 78, 83, 143, 166, 249, 277, 286, 429, 498, 554, 831, 858, 913, 1079, 1662, 1826, 2158, 2739, 3047, 3237, 3601, 5478, 6094, 6474, 7202, 9141, 10803, 11869, 18282, 21606, 22991, 23738, 35607, 39611, 45982, 68973, 71214, 79222, 118833, 137946, 237666, 252901, 298883, 505802, 597766, 758703, 896649, 1517406, 1793298, 3287713, 6575426, 9863139, 19726278]

約数ペア:

[(1, 19726278), (2, 9863139), (3, 6575426), (6, 3287713), (11, 1793298), (13, 1517406), (22, 896649), (26, 758703), (33, 597766), (39, 505802), (66, 298883), (78, 252901), (83, 237666), (143, 137946), (166, 118833), (249, 79222), (277, 71214), (286, 68973), (429, 45982), (498, 39611), (554, 35607), (831, 23738), (858, 22991), (913, 21606), (1079, 18282), (1662, 11869), (1826, 10803), (2158, 9141), (2739, 7202), (3047, 6474), (3237, 6094), (3601, 5478)]