18918284

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{239}}^1\times {\mathrm{257}}^1$

素因数の和:518

約数の個数: 48

約数和(自身を含む): 41610240

約数和(自身を除く): 22691956

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154, 239, 257, 308, 478, 514, 956, 1028, 1673, 1799, 2629, 2827, 3346, 3598, 5258, 5654, 6692, 7196, 10516, 11308, 18403, 19789, 36806, 39578, 61423, 73612, 79156, 122846, 245692, 429961, 675653, 859922, 1351306, 1719844, 2702612, 4729571, 9459142, 18918284]

約数ペア:

[(1, 18918284), (2, 9459142), (4, 4729571), (7, 2702612), (11, 1719844), (14, 1351306), (22, 859922), (28, 675653), (44, 429961), (77, 245692), (154, 122846), (239, 79156), (257, 73612), (308, 61423), (478, 39578), (514, 36806), (956, 19789), (1028, 18403), (1673, 11308), (1799, 10516), (2629, 7196), (2827, 6692), (3346, 5654), (3598, 5258)]