21000299019

素因数分解:

$3^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{8403481}}^1$

素因数の和:8403515

約数の個数: 24

約数和(自身を含む): 34487890128

約数和(自身を除く): 13487591109

約数列:

[1, 3, 7, 17, 21, 49, 51, 119, 147, 357, 833, 2499, 8403481, 25210443, 58824367, 142859177, 176473101, 411770569, 428577531, 1000014239, 1235311707, 3000042717, 7000099673, 21000299019]

約数ペア:

[(1, 21000299019), (3, 7000099673), (7, 3000042717), (17, 1235311707), (21, 1000014239), (49, 428577531), (51, 411770569), (119, 176473101), (147, 142859177), (357, 58824367), (833, 25210443), (2499, 8403481)]