21291912

素因数分解:

$2^3\times 3^2\times {\mathrm{113}}^1\times {\mathrm{2617}}^1$

素因数の和:2742

約数の個数: 48

約数和(自身を含む): 58198140

約数和(自身を除く): 36906228

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 113, 226, 339, 452, 678, 904, 1017, 1356, 2034, 2617, 2712, 4068, 5234, 7851, 8136, 10468, 15702, 20936, 23553, 31404, 47106, 62808, 94212, 188424, 295721, 591442, 887163, 1182884, 1774326, 2365768, 2661489, 3548652, 5322978, 7097304, 10645956, 21291912]

約数ペア:

[(1, 21291912), (2, 10645956), (3, 7097304), (4, 5322978), (6, 3548652), (8, 2661489), (9, 2365768), (12, 1774326), (18, 1182884), (24, 887163), (36, 591442), (72, 295721), (113, 188424), (226, 94212), (339, 62808), (452, 47106), (678, 31404), (904, 23553), (1017, 20936), (1356, 15702), (2034, 10468), (2617, 8136), (2712, 7851), (4068, 5234)]