20733531

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{173}}^1\times {\mathrm{439}}^1$

素因数の和:635

約数の個数: 32

約数和(自身を含む): 34298880

約数和(自身を除く): 13565349

約数列:

[1, 3, 7, 13, 21, 39, 91, 173, 273, 439, 519, 1211, 1317, 2249, 3073, 3633, 5707, 6747, 9219, 15743, 17121, 39949, 47229, 75947, 119847, 227841, 531629, 987311, 1594887, 2961933, 6911177, 20733531]

約数ペア:

[(1, 20733531), (3, 6911177), (7, 2961933), (13, 1594887), (21, 987311), (39, 531629), (91, 227841), (173, 119847), (273, 75947), (439, 47229), (519, 39949), (1211, 17121), (1317, 15743), (2249, 9219), (3073, 6747), (3633, 5707)]