20919650

素因数分解:

$2^1\times 5^2\times {\mathrm{23}}^1\times {\mathrm{18191}}^1$

素因数の和:18226

約数の個数: 24

約数和(自身を含む): 40604544

約数和(自身を除く): 19684894

約数列:

[1, 2, 5, 10, 23, 25, 46, 50, 115, 230, 575, 1150, 18191, 36382, 90955, 181910, 418393, 454775, 836786, 909550, 2091965, 4183930, 10459825, 20919650]

約数ペア:

[(1, 20919650), (2, 10459825), (5, 4183930), (10, 2091965), (23, 909550), (25, 836786), (46, 454775), (50, 418393), (115, 181910), (230, 90955), (575, 36382), (1150, 18191)]