21525765

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{1607}}^1$

素因数の和:1681

約数の個数: 32

約数和(自身を含む): 37048320

約数和(自身を除く): 15522555

約数列:

[1, 3, 5, 15, 19, 47, 57, 95, 141, 235, 285, 705, 893, 1607, 2679, 4465, 4821, 8035, 13395, 24105, 30533, 75529, 91599, 152665, 226587, 377645, 457995, 1132935, 1435051, 4305153, 7175255, 21525765]

約数ペア:

[(1, 21525765), (3, 7175255), (5, 4305153), (15, 1435051), (19, 1132935), (47, 457995), (57, 377645), (95, 226587), (141, 152665), (235, 91599), (285, 75529), (705, 30533), (893, 24105), (1607, 13395), (2679, 8035), (4465, 4821)]