21417104

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{70451}}^1$

素因数の和:70478

約数の個数: 20

約数和(自身を含む): 43680240

約数和(自身を除く): 22263136

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 70451, 140902, 281804, 563608, 1127216, 1338569, 2677138, 5354276, 10708552, 21417104]

約数ペア:

[(1, 21417104), (2, 10708552), (4, 5354276), (8, 2677138), (16, 1338569), (19, 1127216), (38, 563608), (76, 281804), (152, 140902), (304, 70451)]