217486568

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{409}}^1\times {\mathrm{5113}}^1$

素因数の和:5541

約数の個数: 32

約数和(自身を含む): 440315400

約数和(自身を除く): 222828832

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 409, 818, 1636, 3272, 5113, 5317, 10226, 10634, 20452, 21268, 40904, 42536, 66469, 132938, 265876, 531752, 2091217, 4182434, 8364868, 16729736, 27185821, 54371642, 108743284, 217486568]

約数ペア:

[(1, 217486568), (2, 108743284), (4, 54371642), (8, 27185821), (13, 16729736), (26, 8364868), (52, 4182434), (104, 2091217), (409, 531752), (818, 265876), (1636, 132938), (3272, 66469), (5113, 42536), (5317, 40904), (10226, 21268), (10634, 20452)]