21415836

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{1283}}^1$

素因数の和:1410

約数の個数: 48

約数和(自身を含む): 54359424

約数和(自身を除く): 32943588

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 107, 156, 214, 321, 428, 642, 1283, 1284, 1391, 2566, 2782, 3849, 4173, 5132, 5564, 7698, 8346, 15396, 16679, 16692, 33358, 50037, 66716, 100074, 137281, 200148, 274562, 411843, 549124, 823686, 1647372, 1784653, 3569306, 5353959, 7138612, 10707918, 21415836]

約数ペア:

[(1, 21415836), (2, 10707918), (3, 7138612), (4, 5353959), (6, 3569306), (12, 1784653), (13, 1647372), (26, 823686), (39, 549124), (52, 411843), (78, 274562), (107, 200148), (156, 137281), (214, 100074), (321, 66716), (428, 50037), (642, 33358), (1283, 16692), (1284, 16679), (1391, 15396), (2566, 8346), (2782, 7698), (3849, 5564), (4173, 5132)]