20158677

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{1531}}^1$

素因数の和:1574

約数の個数: 48

約数和(自身を含む): 38238720

約数和(自身を除く): 18080043

約数列:

[1, 3, 7, 9, 11, 19, 21, 33, 57, 63, 77, 99, 133, 171, 209, 231, 399, 627, 693, 1197, 1463, 1531, 1881, 4389, 4593, 10717, 13167, 13779, 16841, 29089, 32151, 50523, 87267, 96453, 117887, 151569, 203623, 261801, 319979, 353661, 610869, 959937, 1060983, 1832607, 2239853, 2879811, 6719559, 20158677]

約数ペア:

[(1, 20158677), (3, 6719559), (7, 2879811), (9, 2239853), (11, 1832607), (19, 1060983), (21, 959937), (33, 610869), (57, 353661), (63, 319979), (77, 261801), (99, 203623), (133, 151569), (171, 117887), (209, 96453), (231, 87267), (399, 50523), (627, 32151), (693, 29089), (1197, 16841), (1463, 13779), (1531, 13167), (1881, 10717), (4389, 4593)]