20921654767

素因数分解:

${\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{79}}^1\times {\mathrm{521}}^1\times {\mathrm{641}}^1$

素因数の和:1315

約数の個数: 32

約数和(自身を含む): 23271010560

約数和(自身を除く): 2349355793

約数列:

[1, 13, 61, 79, 521, 641, 793, 1027, 4819, 6773, 8333, 31781, 39101, 41159, 50639, 62647, 333961, 413153, 508313, 535067, 658307, 2510699, 3088979, 4341493, 20371621, 26382919, 32639087, 40156727, 264831073, 342977947, 1609358059, 20921654767]

約数ペア:

[(1, 20921654767), (13, 1609358059), (61, 342977947), (79, 264831073), (521, 40156727), (641, 32639087), (793, 26382919), (1027, 20371621), (4819, 4341493), (6773, 3088979), (8333, 2510699), (31781, 658307), (39101, 535067), (41159, 508313), (50639, 413153), (62647, 333961)]