19319020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{137993}}^1$

素因数の和:138009

約数の個数: 24

約数和(自身を含む): 46365984

約数和(自身を除く): 27046964

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 137993, 275986, 551972, 689965, 965951, 1379930, 1931902, 2759860, 3863804, 4829755, 9659510, 19319020]

約数ペア:

[(1, 19319020), (2, 9659510), (4, 4829755), (5, 3863804), (7, 2759860), (10, 1931902), (14, 1379930), (20, 965951), (28, 689965), (35, 551972), (70, 275986), (140, 137993)]