21877206

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{2777}}^1$

素因数の和:2896

約数の個数: 32

約数和(自身を含む): 47603808

約数和(自身を除く): 25726602

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 101, 202, 303, 606, 1313, 2626, 2777, 3939, 5554, 7878, 8331, 16662, 36101, 72202, 108303, 216606, 280477, 560954, 841431, 1682862, 3646201, 7292402, 10938603, 21877206]

約数ペア:

[(1, 21877206), (2, 10938603), (3, 7292402), (6, 3646201), (13, 1682862), (26, 841431), (39, 560954), (78, 280477), (101, 216606), (202, 108303), (303, 72202), (606, 36101), (1313, 16662), (2626, 8331), (2777, 7878), (3939, 5554)]