21007420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{150053}}^1$

素因数の和:150069

約数の個数: 24

約数和(自身を含む): 50418144

約数和(自身を除く): 29410724

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 150053, 300106, 600212, 750265, 1050371, 1500530, 2100742, 3001060, 4201484, 5251855, 10503710, 21007420]

約数ペア:

[(1, 21007420), (2, 10503710), (4, 5251855), (5, 4201484), (7, 3001060), (10, 2100742), (14, 1500530), (20, 1050371), (28, 750265), (35, 600212), (70, 300106), (140, 150053)]