21218028

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{136013}}^1$

素因数の和:136033

約数の個数: 24

約数和(自身を含む): 53317488

約数和(自身を除く): 32099460

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 136013, 272026, 408039, 544052, 816078, 1632156, 1768169, 3536338, 5304507, 7072676, 10609014, 21218028]

約数ペア:

[(1, 21218028), (2, 10609014), (3, 7072676), (4, 5304507), (6, 3536338), (12, 1768169), (13, 1632156), (26, 816078), (39, 544052), (52, 408039), (78, 272026), (156, 136013)]