21474723

素因数分解:

$3^1\times {\mathrm{17}}^3\times {\mathrm{31}}^1\times {\mathrm{47}}^1$

素因数の和:132

約数の個数: 32

約数和(自身を含む): 32071680

約数和(自身を除く): 10596957

約数列:

[1, 3, 17, 31, 47, 51, 93, 141, 289, 527, 799, 867, 1457, 1581, 2397, 4371, 4913, 8959, 13583, 14739, 24769, 26877, 40749, 74307, 152303, 230911, 421073, 456909, 692733, 1263219, 7158241, 21474723]

約数ペア:

[(1, 21474723), (3, 7158241), (17, 1263219), (31, 692733), (47, 456909), (51, 421073), (93, 230911), (141, 152303), (289, 74307), (527, 40749), (799, 26877), (867, 24769), (1457, 14739), (1581, 13583), (2397, 8959), (4371, 4913)]