19121270

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{39023}}^1$

素因数の和:39044

約数の個数: 24

約数和(自身を含む): 40038624

約数和(自身を除く): 20917354

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 39023, 78046, 195115, 273161, 390230, 546322, 1365805, 1912127, 2731610, 3824254, 9560635, 19121270]

約数ペア:

[(1, 19121270), (2, 9560635), (5, 3824254), (7, 2731610), (10, 1912127), (14, 1365805), (35, 546322), (49, 390230), (70, 273161), (98, 195115), (245, 78046), (490, 39023)]