21487908

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{137743}}^1$

素因数の和:137763

約数の個数: 24

約数和(自身を含む): 53995648

約数和(自身を除く): 32507740

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 137743, 275486, 413229, 550972, 826458, 1652916, 1790659, 3581318, 5371977, 7162636, 10743954, 21487908]

約数ペア:

[(1, 21487908), (2, 10743954), (3, 7162636), (4, 5371977), (6, 3581318), (12, 1790659), (13, 1652916), (26, 826458), (39, 550972), (52, 413229), (78, 275486), (156, 137743)]