18970845

素因数分解:

$3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1\times {\mathrm{379}}^1$

素因数の和:505

約数の個数: 32

約数和(自身を含む): 31518720

約数和(自身を除く): 12547875

約数列:

[1, 3, 5, 15, 47, 71, 141, 213, 235, 355, 379, 705, 1065, 1137, 1895, 3337, 5685, 10011, 16685, 17813, 26909, 50055, 53439, 80727, 89065, 134545, 267195, 403635, 1264723, 3794169, 6323615, 18970845]

約数ペア:

[(1, 18970845), (3, 6323615), (5, 3794169), (15, 1264723), (47, 403635), (71, 267195), (141, 134545), (213, 89065), (235, 80727), (355, 53439), (379, 50055), (705, 26909), (1065, 17813), (1137, 16685), (1895, 10011), (3337, 5685)]