18768357712

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{827821}}^1$

素因数の和:827951

約数の個数: 40

約数和(自身を含む): 39520222280

約数和(自身を除く): 20751864568

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 109, 208, 218, 436, 872, 1417, 1744, 2834, 5668, 11336, 22672, 827821, 1655642, 3311284, 6622568, 10761673, 13245136, 21523346, 43046692, 86093384, 90232489, 172186768, 180464978, 360929956, 721859912, 1173022357, 1443719824, 2346044714, 4692089428, 9384178856, 18768357712]

約数ペア:

[(1, 18768357712), (2, 9384178856), (4, 4692089428), (8, 2346044714), (13, 1443719824), (16, 1173022357), (26, 721859912), (52, 360929956), (104, 180464978), (109, 172186768), (208, 90232489), (218, 86093384), (436, 43046692), (872, 21523346), (1417, 13245136), (1744, 10761673), (2834, 6622568), (5668, 3311284), (11336, 1655642), (22672, 827821)]