21077631

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{181}}^1\times {\mathrm{227}}^1$

素因数の和:436

約数の個数: 32

約数和(自身を含む): 33196800

約数和(自身を除く): 12119169

約数列:

[1, 3, 9, 19, 27, 57, 171, 181, 227, 513, 543, 681, 1629, 2043, 3439, 4313, 4887, 6129, 10317, 12939, 30951, 38817, 41087, 92853, 116451, 123261, 369783, 780653, 1109349, 2341959, 7025877, 21077631]

約数ペア:

[(1, 21077631), (3, 7025877), (9, 2341959), (19, 1109349), (27, 780653), (57, 369783), (171, 123261), (181, 116451), (227, 92853), (513, 41087), (543, 38817), (681, 30951), (1629, 12939), (2043, 10317), (3439, 6129), (4313, 4887)]