20858574

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{67}}^1\times {\mathrm{89}}^1$

素因数の和:225

約数の個数: 64

約数和(自身を含む): 47589120

約数和(自身を除く): 26730546

約数列:

[1, 2, 3, 6, 11, 22, 33, 53, 66, 67, 89, 106, 134, 159, 178, 201, 267, 318, 402, 534, 583, 737, 979, 1166, 1474, 1749, 1958, 2211, 2937, 3498, 3551, 4422, 4717, 5874, 5963, 7102, 9434, 10653, 11926, 14151, 17889, 21306, 28302, 35778, 39061, 51887, 65593, 78122, 103774, 117183, 131186, 155661, 196779, 234366, 311322, 316039, 393558, 632078, 948117, 1896234, 3476429, 6952858, 10429287, 20858574]

約数ペア:

[(1, 20858574), (2, 10429287), (3, 6952858), (6, 3476429), (11, 1896234), (22, 948117), (33, 632078), (53, 393558), (66, 316039), (67, 311322), (89, 234366), (106, 196779), (134, 155661), (159, 131186), (178, 117183), (201, 103774), (267, 78122), (318, 65593), (402, 51887), (534, 39061), (583, 35778), (737, 28302), (979, 21306), (1166, 17889), (1474, 14151), (1749, 11926), (1958, 10653), (2211, 9434), (2937, 7102), (3498, 5963), (3551, 5874), (4422, 4717)]