20018994

素因数分解:

$2^1\times 3^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{2503}}^1$

素因数の和:2582

約数の個数: 32

約数和(自身を含む): 42307584

約数和(自身を除く): 22288590

約数列:

[1, 2, 3, 6, 31, 43, 62, 86, 93, 129, 186, 258, 1333, 2503, 2666, 3999, 5006, 7509, 7998, 15018, 77593, 107629, 155186, 215258, 232779, 322887, 465558, 645774, 3336499, 6672998, 10009497, 20018994]

約数ペア:

[(1, 20018994), (2, 10009497), (3, 6672998), (6, 3336499), (31, 645774), (43, 465558), (62, 322887), (86, 232779), (93, 215258), (129, 155186), (186, 107629), (258, 77593), (1333, 15018), (2503, 7998), (2666, 7509), (3999, 5006)]