21123844

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{32801}}^1$

素因数の和:32835

約数の個数: 24

約数和(自身を含む): 44085888

約数和(自身を除く): 22962044

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 92, 161, 322, 644, 32801, 65602, 131204, 229607, 459214, 754423, 918428, 1508846, 3017692, 5280961, 10561922, 21123844]

約数ペア:

[(1, 21123844), (2, 10561922), (4, 5280961), (7, 3017692), (14, 1508846), (23, 918428), (28, 754423), (46, 459214), (92, 229607), (161, 131204), (322, 65602), (644, 32801)]