21663708

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^1\times {\mathrm{337}}^1\times {\mathrm{487}}^1$

素因数の和:842

約数の個数: 48

約数和(自身を含む): 55421184

約数和(自身を除く): 33757476

約数列:

[1, 2, 3, 4, 6, 11, 12, 22, 33, 44, 66, 132, 337, 487, 674, 974, 1011, 1348, 1461, 1948, 2022, 2922, 3707, 4044, 5357, 5844, 7414, 10714, 11121, 14828, 16071, 21428, 22242, 32142, 44484, 64284, 164119, 328238, 492357, 656476, 984714, 1805309, 1969428, 3610618, 5415927, 7221236, 10831854, 21663708]

約数ペア:

[(1, 21663708), (2, 10831854), (3, 7221236), (4, 5415927), (6, 3610618), (11, 1969428), (12, 1805309), (22, 984714), (33, 656476), (44, 492357), (66, 328238), (132, 164119), (337, 64284), (487, 44484), (674, 32142), (974, 22242), (1011, 21428), (1348, 16071), (1461, 14828), (1948, 11121), (2022, 10714), (2922, 7414), (3707, 5844), (4044, 5357)]