18996428

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{733}}^1$

素因数の和:798

約数の個数: 48

約数和(自身を含む): 39459840

約数和(自身を除く): 20463412

約数列:

[1, 2, 4, 11, 19, 22, 31, 38, 44, 62, 76, 124, 209, 341, 418, 589, 682, 733, 836, 1178, 1364, 1466, 2356, 2932, 6479, 8063, 12958, 13927, 16126, 22723, 25916, 27854, 32252, 45446, 55708, 90892, 153197, 249953, 306394, 431737, 499906, 612788, 863474, 999812, 1726948, 4749107, 9498214, 18996428]

約数ペア:

[(1, 18996428), (2, 9498214), (4, 4749107), (11, 1726948), (19, 999812), (22, 863474), (31, 612788), (38, 499906), (44, 431737), (62, 306394), (76, 249953), (124, 153197), (209, 90892), (341, 55708), (418, 45446), (589, 32252), (682, 27854), (733, 25916), (836, 22723), (1178, 16126), (1364, 13927), (1466, 12958), (2356, 8063), (2932, 6479)]