21000306607

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{1091}}^1\times {\mathrm{119557}}^1$

素因数の和:120678

約数の個数: 16

約数和(自身を含む): 25067008512

約数和(自身を除く): 4066701905

約数列:

[1, 7, 23, 161, 1091, 7637, 25093, 119557, 175651, 836899, 2749811, 19248677, 130436687, 913056809, 3000043801, 21000306607]

約数ペア:

[(1, 21000306607), (7, 3000043801), (23, 913056809), (161, 130436687), (1091, 19248677), (7637, 2749811), (25093, 836899), (119557, 175651)]