20475531

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{1439}}^1$

素因数の和:1496

約数の個数: 32

約数和(自身を含む): 33177600

約数和(自身を除く): 12702069

約数列:

[1, 3, 9, 17, 27, 31, 51, 93, 153, 279, 459, 527, 837, 1439, 1581, 4317, 4743, 12951, 14229, 24463, 38853, 44609, 73389, 133827, 220167, 401481, 660501, 758353, 1204443, 2275059, 6825177, 20475531]

約数ペア:

[(1, 20475531), (3, 6825177), (9, 2275059), (17, 1204443), (27, 758353), (31, 660501), (51, 401481), (93, 220167), (153, 133827), (279, 73389), (459, 44609), (527, 38853), (837, 24463), (1439, 14229), (1581, 12951), (4317, 4743)]