20554758

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{4409}}^1$

素因数の和:4461

約数の個数: 48

約数和(自身を含む): 52284960

約数和(自身を除く): 31730202

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 37, 42, 63, 74, 111, 126, 222, 259, 333, 518, 666, 777, 1554, 2331, 4409, 4662, 8818, 13227, 26454, 30863, 39681, 61726, 79362, 92589, 163133, 185178, 277767, 326266, 489399, 555534, 978798, 1141931, 1468197, 2283862, 2936394, 3425793, 6851586, 10277379, 20554758]

約数ペア:

[(1, 20554758), (2, 10277379), (3, 6851586), (6, 3425793), (7, 2936394), (9, 2283862), (14, 1468197), (18, 1141931), (21, 978798), (37, 555534), (42, 489399), (63, 326266), (74, 277767), (111, 185178), (126, 163133), (222, 92589), (259, 79362), (333, 61726), (518, 39681), (666, 30863), (777, 26454), (1554, 13227), (2331, 8818), (4409, 4662)]