20989344

素因数分解:

$2^5\times 3^1\times {\mathrm{131}}^1\times {\mathrm{1669}}^1$

素因数の和:1813

約数の個数: 48

約数和(自身を含む): 55550880

約数和(自身を除く): 34561536

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 96, 131, 262, 393, 524, 786, 1048, 1572, 1669, 2096, 3144, 3338, 4192, 5007, 6288, 6676, 10014, 12576, 13352, 20028, 26704, 40056, 53408, 80112, 160224, 218639, 437278, 655917, 874556, 1311834, 1749112, 2623668, 3498224, 5247336, 6996448, 10494672, 20989344]

約数ペア:

[(1, 20989344), (2, 10494672), (3, 6996448), (4, 5247336), (6, 3498224), (8, 2623668), (12, 1749112), (16, 1311834), (24, 874556), (32, 655917), (48, 437278), (96, 218639), (131, 160224), (262, 80112), (393, 53408), (524, 40056), (786, 26704), (1048, 20028), (1572, 13352), (1669, 12576), (2096, 10014), (3144, 6676), (3338, 6288), (4192, 5007)]