21947406

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{5309}}^1$

素因数の和:5380

約数の個数: 32

約数和(自身を含む): 48172320

約数和(自身を除く): 26224914

約数列:

[1, 2, 3, 6, 13, 26, 39, 53, 78, 106, 159, 318, 689, 1378, 2067, 4134, 5309, 10618, 15927, 31854, 69017, 138034, 207051, 281377, 414102, 562754, 844131, 1688262, 3657901, 7315802, 10973703, 21947406]

約数ペア:

[(1, 21947406), (2, 10973703), (3, 7315802), (6, 3657901), (13, 1688262), (26, 844131), (39, 562754), (53, 414102), (78, 281377), (106, 207051), (159, 138034), (318, 69017), (689, 31854), (1378, 15927), (2067, 10618), (4134, 5309)]