20784492

素因数分解:

$2^2\times 3^3\times {\mathrm{223}}^1\times {\mathrm{863}}^1$

素因数の和:1099

約数の個数: 48

約数和(自身を含む): 54190080

約数和(自身を除く): 33405588

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 108, 223, 446, 669, 863, 892, 1338, 1726, 2007, 2589, 2676, 3452, 4014, 5178, 6021, 7767, 8028, 10356, 12042, 15534, 23301, 24084, 31068, 46602, 93204, 192449, 384898, 577347, 769796, 1154694, 1732041, 2309388, 3464082, 5196123, 6928164, 10392246, 20784492]

約数ペア:

[(1, 20784492), (2, 10392246), (3, 6928164), (4, 5196123), (6, 3464082), (9, 2309388), (12, 1732041), (18, 1154694), (27, 769796), (36, 577347), (54, 384898), (108, 192449), (223, 93204), (446, 46602), (669, 31068), (863, 24084), (892, 23301), (1338, 15534), (1726, 12042), (2007, 10356), (2589, 8028), (2676, 7767), (3452, 6021), (4014, 5178)]