18387215

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{163}}^1\times {\mathrm{293}}^1$

素因数の和:479

約数の個数: 32

約数和(自身を含む): 27772416

約数和(自身を除く): 9385201

約数列:

[1, 5, 7, 11, 35, 55, 77, 163, 293, 385, 815, 1141, 1465, 1793, 2051, 3223, 5705, 8965, 10255, 12551, 16115, 22561, 47759, 62755, 112805, 238795, 334313, 525349, 1671565, 2626745, 3677443, 18387215]

約数ペア:

[(1, 18387215), (5, 3677443), (7, 2626745), (11, 1671565), (35, 525349), (55, 334313), (77, 238795), (163, 112805), (293, 62755), (385, 47759), (815, 22561), (1141, 16115), (1465, 12551), (1793, 10255), (2051, 8965), (3223, 5705)]