21466720

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{12197}}^1$

素因数の和:12223

約数の個数: 48

約数和(自身を含む): 55330128

約数和(自身を除く): 33863408

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 80, 88, 110, 160, 176, 220, 352, 440, 880, 1760, 12197, 24394, 48788, 60985, 97576, 121970, 134167, 195152, 243940, 268334, 390304, 487880, 536668, 670835, 975760, 1073336, 1341670, 1951520, 2146672, 2683340, 4293344, 5366680, 10733360, 21466720]

約数ペア:

[(1, 21466720), (2, 10733360), (4, 5366680), (5, 4293344), (8, 2683340), (10, 2146672), (11, 1951520), (16, 1341670), (20, 1073336), (22, 975760), (32, 670835), (40, 536668), (44, 487880), (55, 390304), (80, 268334), (88, 243940), (110, 195152), (160, 134167), (176, 121970), (220, 97576), (352, 60985), (440, 48788), (880, 24394), (1760, 12197)]