21980036

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{22247}}^1$

素因数の和:22283

約数の個数: 24

約数和(自身を含む): 43606080

約数和(自身を除く): 21626044

約数列:

[1, 2, 4, 13, 19, 26, 38, 52, 76, 247, 494, 988, 22247, 44494, 88988, 289211, 422693, 578422, 845386, 1156844, 1690772, 5495009, 10990018, 21980036]

約数ペア:

[(1, 21980036), (2, 10990018), (4, 5495009), (13, 1690772), (19, 1156844), (26, 845386), (38, 578422), (52, 422693), (76, 289211), (247, 88988), (494, 44494), (988, 22247)]