21119835

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{4129}}^1$

素因数の和:4179

約数の個数: 32

約数和(自身を含む): 38062080

約数和(自身を除く): 16942245

約数列:

[1, 3, 5, 11, 15, 31, 33, 55, 93, 155, 165, 341, 465, 1023, 1705, 4129, 5115, 12387, 20645, 45419, 61935, 127999, 136257, 227095, 383997, 639995, 681285, 1407989, 1919985, 4223967, 7039945, 21119835]

約数ペア:

[(1, 21119835), (3, 7039945), (5, 4223967), (11, 1919985), (15, 1407989), (31, 681285), (33, 639995), (55, 383997), (93, 227095), (155, 136257), (165, 127999), (341, 61935), (465, 45419), (1023, 20645), (1705, 12387), (4129, 5115)]