21388146

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{7411}}^1$

素因数の和:7466

約数の個数: 32

約数和(自身を含む): 47318208

約数和(自身を除く): 25930062

約数列:

[1, 2, 3, 6, 13, 26, 37, 39, 74, 78, 111, 222, 481, 962, 1443, 2886, 7411, 14822, 22233, 44466, 96343, 192686, 274207, 289029, 548414, 578058, 822621, 1645242, 3564691, 7129382, 10694073, 21388146]

約数ペア:

[(1, 21388146), (2, 10694073), (3, 7129382), (6, 3564691), (13, 1645242), (26, 822621), (37, 578058), (39, 548414), (74, 289029), (78, 274207), (111, 192686), (222, 96343), (481, 44466), (962, 22233), (1443, 14822), (2886, 7411)]