2561521518

素因数分解:

$2^1\times 3^2\times {\mathrm{19}}^1\times {\mathrm{7489829}}^1$

素因数の和:7489856

約数の個数: 24

約数和(自身を含む): 5842067400

約数和(自身を除く): 3280545882

約数列:

[1, 2, 3, 6, 9, 18, 19, 38, 57, 114, 171, 342, 7489829, 14979658, 22469487, 44938974, 67408461, 134816922, 142306751, 284613502, 426920253, 853840506, 1280760759, 2561521518]

約数ペア:

[(1, 2561521518), (2, 1280760759), (3, 853840506), (6, 426920253), (9, 284613502), (18, 142306751), (19, 134816922), (38, 67408461), (57, 44938974), (114, 22469487), (171, 14979658), (342, 7489829)]