21420306

素因数分解:

$2^1\times 3^2\times {\mathrm{17}}^1\times {\mathrm{70001}}^1$

素因数の和:70026

約数の個数: 24

約数和(自身を含む): 49141404

約数和(自身を除く): 27721098

約数列:

[1, 2, 3, 6, 9, 17, 18, 34, 51, 102, 153, 306, 70001, 140002, 210003, 420006, 630009, 1190017, 1260018, 2380034, 3570051, 7140102, 10710153, 21420306]

約数ペア:

[(1, 21420306), (2, 10710153), (3, 7140102), (6, 3570051), (9, 2380034), (17, 1260018), (18, 1190017), (34, 630009), (51, 420006), (102, 210003), (153, 140002), (306, 70001)]