18966978

素因数分解:

$2^1\times 3^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{1789}}^1$

素因数の和:1847

約数の個数: 48

約数和(自身を含む): 44678400

約数和(自身を除く): 25711422

約数列:

[1, 2, 3, 6, 9, 18, 19, 31, 38, 57, 62, 93, 114, 171, 186, 279, 342, 558, 589, 1178, 1767, 1789, 3534, 3578, 5301, 5367, 10602, 10734, 16101, 32202, 33991, 55459, 67982, 101973, 110918, 166377, 203946, 305919, 332754, 499131, 611838, 998262, 1053721, 2107442, 3161163, 6322326, 9483489, 18966978]

約数ペア:

[(1, 18966978), (2, 9483489), (3, 6322326), (6, 3161163), (9, 2107442), (18, 1053721), (19, 998262), (31, 611838), (38, 499131), (57, 332754), (62, 305919), (93, 203946), (114, 166377), (171, 110918), (186, 101973), (279, 67982), (342, 55459), (558, 33991), (589, 32202), (1178, 16101), (1767, 10734), (1789, 10602), (3534, 5367), (3578, 5301)]