21002565

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{3581}}^1$

素因数の和:3629

約数の個数: 32

約数和(自身を含む): 37138176

約数和(自身を除く): 16135611

約数列:

[1, 3, 5, 15, 17, 23, 51, 69, 85, 115, 255, 345, 391, 1173, 1955, 3581, 5865, 10743, 17905, 53715, 60877, 82363, 182631, 247089, 304385, 411815, 913155, 1235445, 1400171, 4200513, 7000855, 21002565]

約数ペア:

[(1, 21002565), (3, 7000855), (5, 4200513), (15, 1400171), (17, 1235445), (23, 913155), (51, 411815), (69, 304385), (85, 247089), (115, 182631), (255, 82363), (345, 60877), (391, 53715), (1173, 17905), (1955, 10743), (3581, 5865)]