15216215

素因数分解:

$5^1\times 7^2\times {\mathrm{173}}^1\times {\mathrm{359}}^1$

素因数の和:551

約数の個数: 24

約数和(自身を含む): 21422880

約数和(自身を除く): 6206665

約数列:

[1, 5, 7, 35, 49, 173, 245, 359, 865, 1211, 1795, 2513, 6055, 8477, 12565, 17591, 42385, 62107, 87955, 310535, 434749, 2173745, 3043243, 15216215]

約数ペア:

[(1, 15216215), (5, 3043243), (7, 2173745), (35, 434749), (49, 310535), (173, 87955), (245, 62107), (359, 42385), (865, 17591), (1211, 12565), (1795, 8477), (2513, 6055)]