20193867

素因数分解:

$3^4\times {\mathrm{61}}^2\times {\mathrm{67}}^1$

素因数の和:201

約数の個数: 30

約数和(自身を含む): 31126524

約数和(自身を除く): 10932657

約数列:

[1, 3, 9, 27, 61, 67, 81, 183, 201, 549, 603, 1647, 1809, 3721, 4087, 4941, 5427, 11163, 12261, 33489, 36783, 100467, 110349, 249307, 301401, 331047, 747921, 2243763, 6731289, 20193867]

約数ペア:

[(1, 20193867), (3, 6731289), (9, 2243763), (27, 747921), (61, 331047), (67, 301401), (81, 249307), (183, 110349), (201, 100467), (549, 36783), (603, 33489), (1647, 12261), (1809, 11163), (3721, 5427), (4087, 4941)]