19330731

素因数分解:

$3^4\times 7^1\times {\mathrm{103}}^1\times {\mathrm{331}}^1$

素因数の和:453

約数の個数: 40

約数和(自身を含む): 33423104

約数和(自身を除く): 14092373

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 103, 189, 309, 331, 567, 721, 927, 993, 2163, 2317, 2781, 2979, 6489, 6951, 8343, 8937, 19467, 20853, 26811, 34093, 58401, 62559, 102279, 187677, 238651, 306837, 715953, 920511, 2147859, 2761533, 6443577, 19330731]

約数ペア:

[(1, 19330731), (3, 6443577), (7, 2761533), (9, 2147859), (21, 920511), (27, 715953), (63, 306837), (81, 238651), (103, 187677), (189, 102279), (309, 62559), (331, 58401), (567, 34093), (721, 26811), (927, 20853), (993, 19467), (2163, 8937), (2317, 8343), (2781, 6951), (2979, 6489)]