20691558

素因数分解:

$2^1\times 3^3\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{181}}^1$

素因数の和:294

約数の個数: 64

約数和(自身を含む): 48484800

約数和(自身を除く): 27793242

約数列:

[1, 2, 3, 6, 9, 18, 27, 29, 54, 58, 73, 87, 146, 174, 181, 219, 261, 362, 438, 522, 543, 657, 783, 1086, 1314, 1566, 1629, 1971, 2117, 3258, 3942, 4234, 4887, 5249, 6351, 9774, 10498, 12702, 13213, 15747, 19053, 26426, 31494, 38106, 39639, 47241, 57159, 79278, 94482, 114318, 118917, 141723, 237834, 283446, 356751, 383177, 713502, 766354, 1149531, 2299062, 3448593, 6897186, 10345779, 20691558]

約数ペア:

[(1, 20691558), (2, 10345779), (3, 6897186), (6, 3448593), (9, 2299062), (18, 1149531), (27, 766354), (29, 713502), (54, 383177), (58, 356751), (73, 283446), (87, 237834), (146, 141723), (174, 118917), (181, 114318), (219, 94482), (261, 79278), (362, 57159), (438, 47241), (522, 39639), (543, 38106), (657, 31494), (783, 26426), (1086, 19053), (1314, 15747), (1566, 13213), (1629, 12702), (1971, 10498), (2117, 9774), (3258, 6351), (3942, 5249), (4234, 4887)]