21488115

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{4201}}^1$

素因数の和:4251

約数の個数: 32

約数和(自身を含む): 38725632

約数和(自身を除く): 17237517

約数列:

[1, 3, 5, 11, 15, 31, 33, 55, 93, 155, 165, 341, 465, 1023, 1705, 4201, 5115, 12603, 21005, 46211, 63015, 130231, 138633, 231055, 390693, 651155, 693165, 1432541, 1953465, 4297623, 7162705, 21488115]

約数ペア:

[(1, 21488115), (3, 7162705), (5, 4297623), (11, 1953465), (15, 1432541), (31, 693165), (33, 651155), (55, 390693), (93, 231055), (155, 138633), (165, 130231), (341, 63015), (465, 46211), (1023, 21005), (1705, 12603), (4201, 5115)]