18991764

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^1\times {\mathrm{199}}^1\times {\mathrm{241}}^1$

素因数の和:461

約数の個数: 72

約数和(自身を含む): 52852800

約数和(自身を除く): 33861036

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 33, 36, 44, 66, 99, 132, 198, 199, 241, 396, 398, 482, 597, 723, 796, 964, 1194, 1446, 1791, 2169, 2189, 2388, 2651, 2892, 3582, 4338, 4378, 5302, 6567, 7164, 7953, 8676, 8756, 10604, 13134, 15906, 19701, 23859, 26268, 31812, 39402, 47718, 47959, 78804, 95436, 95918, 143877, 191836, 287754, 431631, 527549, 575508, 863262, 1055098, 1582647, 1726524, 2110196, 3165294, 4747941, 6330588, 9495882, 18991764]

約数ペア:

[(1, 18991764), (2, 9495882), (3, 6330588), (4, 4747941), (6, 3165294), (9, 2110196), (11, 1726524), (12, 1582647), (18, 1055098), (22, 863262), (33, 575508), (36, 527549), (44, 431631), (66, 287754), (99, 191836), (132, 143877), (198, 95918), (199, 95436), (241, 78804), (396, 47959), (398, 47718), (482, 39402), (597, 31812), (723, 26268), (796, 23859), (964, 19701), (1194, 15906), (1446, 13134), (1791, 10604), (2169, 8756), (2189, 8676), (2388, 7953), (2651, 7164), (2892, 6567), (3582, 5302), (4338, 4378)]