72921681

素因数分解:

$3^3\times 7^1\times {\mathrm{353}}^1\times {\mathrm{1093}}^1$

素因数の和:1462

約数の個数: 32

約数和(自身を含む): 123928320

約数和(自身を除く): 51006639

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 353, 1059, 1093, 2471, 3177, 3279, 7413, 7651, 9531, 9837, 22239, 22953, 29511, 66717, 68859, 206577, 385829, 1157487, 2700803, 3472461, 8102409, 10417383, 24307227, 72921681]

約数ペア:

[(1, 72921681), (3, 24307227), (7, 10417383), (9, 8102409), (21, 3472461), (27, 2700803), (63, 1157487), (189, 385829), (353, 206577), (1059, 68859), (1093, 66717), (2471, 29511), (3177, 22953), (3279, 22239), (7413, 9837), (7651, 9531)]