18671548

素因数分解:

$2^2\times 7^3\times {\mathrm{31}}^1\times {\mathrm{439}}^1$

素因数の和:495

約数の個数: 48

約数和(自身を含む): 39424000

約数和(自身を除く): 20752452

約数列:

[1, 2, 4, 7, 14, 28, 31, 49, 62, 98, 124, 196, 217, 343, 434, 439, 686, 868, 878, 1372, 1519, 1756, 3038, 3073, 6076, 6146, 10633, 12292, 13609, 21266, 21511, 27218, 42532, 43022, 54436, 86044, 95263, 150577, 190526, 301154, 381052, 602308, 666841, 1333682, 2667364, 4667887, 9335774, 18671548]

約数ペア:

[(1, 18671548), (2, 9335774), (4, 4667887), (7, 2667364), (14, 1333682), (28, 666841), (31, 602308), (49, 381052), (62, 301154), (98, 190526), (124, 150577), (196, 95263), (217, 86044), (343, 54436), (434, 43022), (439, 42532), (686, 27218), (868, 21511), (878, 21266), (1372, 13609), (1519, 12292), (1756, 10633), (3038, 6146), (3073, 6076)]