21019842

素因数分解:

$2^1\times 3^2\times {\mathrm{89}}^1\times {\mathrm{13121}}^1$

素因数の和:13218

約数の個数: 24

約数和(自身を含む): 46058220

約数和(自身を除く): 25038378

約数列:

[1, 2, 3, 6, 9, 18, 89, 178, 267, 534, 801, 1602, 13121, 26242, 39363, 78726, 118089, 236178, 1167769, 2335538, 3503307, 7006614, 10509921, 21019842]

約数ペア:

[(1, 21019842), (2, 10509921), (3, 7006614), (6, 3503307), (9, 2335538), (18, 1167769), (89, 236178), (178, 118089), (267, 78726), (534, 39363), (801, 26242), (1602, 13121)]