20210454

素因数分解:

$2^1\times 3^2\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{991}}^1$

素因数の和:1113

約数の個数: 48

約数和(自身を含む): 48282624

約数和(自身を除く): 28072170

約数列:

[1, 2, 3, 6, 9, 11, 18, 22, 33, 66, 99, 103, 198, 206, 309, 618, 927, 991, 1133, 1854, 1982, 2266, 2973, 3399, 5946, 6798, 8919, 10197, 10901, 17838, 20394, 21802, 32703, 65406, 98109, 102073, 196218, 204146, 306219, 612438, 918657, 1122803, 1837314, 2245606, 3368409, 6736818, 10105227, 20210454]

約数ペア:

[(1, 20210454), (2, 10105227), (3, 6736818), (6, 3368409), (9, 2245606), (11, 1837314), (18, 1122803), (22, 918657), (33, 612438), (66, 306219), (99, 204146), (103, 196218), (198, 102073), (206, 98109), (309, 65406), (618, 32703), (927, 21802), (991, 20394), (1133, 17838), (1854, 10901), (1982, 10197), (2266, 8919), (2973, 6798), (3399, 5946)]