20989914

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{10259}}^1$

素因数の和:10306

約数の個数: 32

約数和(自身を含む): 47278080

約数和(自身を除く): 26288166

約数列:

[1, 2, 3, 6, 11, 22, 31, 33, 62, 66, 93, 186, 341, 682, 1023, 2046, 10259, 20518, 30777, 61554, 112849, 225698, 318029, 338547, 636058, 677094, 954087, 1908174, 3498319, 6996638, 10494957, 20989914]

約数ペア:

[(1, 20989914), (2, 10494957), (3, 6996638), (6, 3498319), (11, 1908174), (22, 954087), (31, 677094), (33, 636058), (62, 338547), (66, 318029), (93, 225698), (186, 112849), (341, 61554), (682, 30777), (1023, 20518), (2046, 10259)]