220190913

素因数分解:

$3^3\times {\mathrm{107}}^1\times {\mathrm{199}}^1\times {\mathrm{383}}^1$

素因数の和:698

約数の個数: 32

約数和(自身を含む): 331776000

約数和(自身を除く): 111585087

約数列:

[1, 3, 9, 27, 107, 199, 321, 383, 597, 963, 1149, 1791, 2889, 3447, 5373, 10341, 21293, 40981, 63879, 76217, 122943, 191637, 228651, 368829, 574911, 685953, 1106487, 2057859, 8155219, 24465657, 73396971, 220190913]

約数ペア:

[(1, 220190913), (3, 73396971), (9, 24465657), (27, 8155219), (107, 2057859), (199, 1106487), (321, 685953), (383, 574911), (597, 368829), (963, 228651), (1149, 191637), (1791, 122943), (2889, 76217), (3447, 63879), (5373, 40981), (10341, 21293)]