21124105

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{229}}^1\times {\mathrm{971}}^1$

素因数の和:1224

約数の個数: 16

約数和(自身を含む): 26827200

約数和(自身を除く): 5703095

約数列:

[1, 5, 19, 95, 229, 971, 1145, 4351, 4855, 18449, 21755, 92245, 222359, 1111795, 4224821, 21124105]

約数ペア:

[(1, 21124105), (5, 4224821), (19, 1111795), (95, 222359), (229, 92245), (971, 21755), (1145, 18449), (4351, 4855)]