20998529744

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{4063183}}^1$

素因数の和:4063227

約数の個数: 40

約数和(自身を含む): 45345133440

約数和(自身を除く): 24346603696

約数列:

[1, 2, 4, 8, 16, 17, 19, 34, 38, 68, 76, 136, 152, 272, 304, 323, 646, 1292, 2584, 5168, 4063183, 8126366, 16252732, 32505464, 65010928, 69074111, 77200477, 138148222, 154400954, 276296444, 308801908, 552592888, 617603816, 1105185776, 1235207632, 1312408109, 2624816218, 5249632436, 10499264872, 20998529744]

約数ペア:

[(1, 20998529744), (2, 10499264872), (4, 5249632436), (8, 2624816218), (16, 1312408109), (17, 1235207632), (19, 1105185776), (34, 617603816), (38, 552592888), (68, 308801908), (76, 276296444), (136, 154400954), (152, 138148222), (272, 77200477), (304, 69074111), (323, 65010928), (646, 32505464), (1292, 16252732), (2584, 8126366), (5168, 4063183)]