21332464

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{1049}}^1$

素因数の和:1129

約数の個数: 40

約数和(自身を含む): 43747200

約数和(自身を除く): 22414736

約数列:

[1, 2, 4, 8, 16, 31, 41, 62, 82, 124, 164, 248, 328, 496, 656, 1049, 1271, 2098, 2542, 4196, 5084, 8392, 10168, 16784, 20336, 32519, 43009, 65038, 86018, 130076, 172036, 260152, 344072, 520304, 688144, 1333279, 2666558, 5333116, 10666232, 21332464]

約数ペア:

[(1, 21332464), (2, 10666232), (4, 5333116), (8, 2666558), (16, 1333279), (31, 688144), (41, 520304), (62, 344072), (82, 260152), (124, 172036), (164, 130076), (248, 86018), (328, 65038), (496, 43009), (656, 32519), (1049, 20336), (1271, 16784), (2098, 10168), (2542, 8392), (4196, 5084)]