21746120

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^2\times {\mathrm{4493}}^1$

素因数の和:4526

約数の個数: 48

約数和(自身を含む): 53793180

約数和(自身を除く): 32047060

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 121, 220, 242, 440, 484, 605, 968, 1210, 2420, 4493, 4840, 8986, 17972, 22465, 35944, 44930, 49423, 89860, 98846, 179720, 197692, 247115, 395384, 494230, 543653, 988460, 1087306, 1976920, 2174612, 2718265, 4349224, 5436530, 10873060, 21746120]

約数ペア:

[(1, 21746120), (2, 10873060), (4, 5436530), (5, 4349224), (8, 2718265), (10, 2174612), (11, 1976920), (20, 1087306), (22, 988460), (40, 543653), (44, 494230), (55, 395384), (88, 247115), (110, 197692), (121, 179720), (220, 98846), (242, 89860), (440, 49423), (484, 44930), (605, 35944), (968, 22465), (1210, 17972), (2420, 8986), (4493, 4840)]