21974966

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{431}}^1$

素因数の和:536

約数の個数: 32

約数和(自身を含む): 37231488

約数和(自身を除く): 15256522

約数列:

[1, 2, 13, 26, 37, 53, 74, 106, 431, 481, 689, 862, 962, 1378, 1961, 3922, 5603, 11206, 15947, 22843, 25493, 31894, 45686, 50986, 207311, 296959, 414622, 593918, 845191, 1690382, 10987483, 21974966]

約数ペア:

[(1, 21974966), (2, 10987483), (13, 1690382), (26, 845191), (37, 593918), (53, 414622), (74, 296959), (106, 207311), (431, 50986), (481, 45686), (689, 31894), (862, 25493), (962, 22843), (1378, 15947), (1961, 11206), (3922, 5603)]