20296413

素因数分解:

$3^4\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{137}}^1$

素因数の和:239

約数の個数: 40

約数和(自身を含む): 32060160

約数和(自身を除く): 11763747

約数列:

[1, 3, 9, 27, 31, 59, 81, 93, 137, 177, 279, 411, 531, 837, 1233, 1593, 1829, 2511, 3699, 4247, 4779, 5487, 8083, 11097, 12741, 16461, 24249, 38223, 49383, 72747, 114669, 148149, 218241, 250573, 344007, 654723, 751719, 2255157, 6765471, 20296413]

約数ペア:

[(1, 20296413), (3, 6765471), (9, 2255157), (27, 751719), (31, 654723), (59, 344007), (81, 250573), (93, 218241), (137, 148149), (177, 114669), (279, 72747), (411, 49383), (531, 38223), (837, 24249), (1233, 16461), (1593, 12741), (1829, 11097), (2511, 8083), (3699, 5487), (4247, 4779)]