645373876

素因数分解:

$2^2\times 7^1\times {\mathrm{1097}}^1\times {\mathrm{21011}}^1$

素因数の和:22119

約数の個数: 24

約数和(自身を含む): 1291985856

約数和(自身を除く): 646611980

約数列:

[1, 2, 4, 7, 14, 28, 1097, 2194, 4388, 7679, 15358, 21011, 30716, 42022, 84044, 147077, 294154, 588308, 23049067, 46098134, 92196268, 161343469, 322686938, 645373876]

約数ペア:

[(1, 645373876), (2, 322686938), (4, 161343469), (7, 92196268), (14, 46098134), (28, 23049067), (1097, 588308), (2194, 294154), (4388, 147077), (7679, 84044), (15358, 42022), (21011, 30716)]