21268035

素因数分解:

$3^3\times 5^1\times {\mathrm{257}}^1\times {\mathrm{613}}^1$

素因数の和:884

約数の個数: 32

約数和(自身を含む): 38018880

約数和(自身を除く): 16750845

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 257, 613, 771, 1285, 1839, 2313, 3065, 3855, 5517, 6939, 9195, 11565, 16551, 27585, 34695, 82755, 157541, 472623, 787705, 1417869, 2363115, 4253607, 7089345, 21268035]

約数ペア:

[(1, 21268035), (3, 7089345), (5, 4253607), (9, 2363115), (15, 1417869), (27, 787705), (45, 472623), (135, 157541), (257, 82755), (613, 34695), (771, 27585), (1285, 16551), (1839, 11565), (2313, 9195), (3065, 6939), (3855, 5517)]