20965048

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{199}}^1\times {\mathrm{1013}}^1$

素因数の和:1231

約数の個数: 32

約数和(自身を含む): 42588000

約数和(自身を除く): 21622952

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 199, 398, 796, 1013, 1592, 2026, 2587, 4052, 5174, 8104, 10348, 13169, 20696, 26338, 52676, 105352, 201587, 403174, 806348, 1612696, 2620631, 5241262, 10482524, 20965048]

約数ペア:

[(1, 20965048), (2, 10482524), (4, 5241262), (8, 2620631), (13, 1612696), (26, 806348), (52, 403174), (104, 201587), (199, 105352), (398, 52676), (796, 26338), (1013, 20696), (1592, 13169), (2026, 10348), (2587, 8104), (4052, 5174)]