20743758

素因数分解:

$2^1\times 3^2\times 7^2\times {\mathrm{29}}^1\times {\mathrm{811}}^1$

素因数の和:862

約数の個数: 72

約数和(自身を含む): 54152280

約数和(自身を除く): 33408522

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 29, 42, 49, 58, 63, 87, 98, 126, 147, 174, 203, 261, 294, 406, 441, 522, 609, 811, 882, 1218, 1421, 1622, 1827, 2433, 2842, 3654, 4263, 4866, 5677, 7299, 8526, 11354, 12789, 14598, 17031, 23519, 25578, 34062, 39739, 47038, 51093, 70557, 79478, 102186, 119217, 141114, 164633, 211671, 238434, 329266, 357651, 423342, 493899, 715302, 987798, 1152431, 1481697, 2304862, 2963394, 3457293, 6914586, 10371879, 20743758]

約数ペア:

[(1, 20743758), (2, 10371879), (3, 6914586), (6, 3457293), (7, 2963394), (9, 2304862), (14, 1481697), (18, 1152431), (21, 987798), (29, 715302), (42, 493899), (49, 423342), (58, 357651), (63, 329266), (87, 238434), (98, 211671), (126, 164633), (147, 141114), (174, 119217), (203, 102186), (261, 79478), (294, 70557), (406, 51093), (441, 47038), (522, 39739), (609, 34062), (811, 25578), (882, 23519), (1218, 17031), (1421, 14598), (1622, 12789), (1827, 11354), (2433, 8526), (2842, 7299), (3654, 5677), (4263, 4866)]