20817992

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{4259}}^1$

素因数の和:4325

約数の個数: 32

約数和(自身を含む): 42940800

約数和(自身を除く): 22122808

約数列:

[1, 2, 4, 8, 13, 26, 47, 52, 94, 104, 188, 376, 611, 1222, 2444, 4259, 4888, 8518, 17036, 34072, 55367, 110734, 200173, 221468, 400346, 442936, 800692, 1601384, 2602249, 5204498, 10408996, 20817992]

約数ペア:

[(1, 20817992), (2, 10408996), (4, 5204498), (8, 2602249), (13, 1601384), (26, 800692), (47, 442936), (52, 400346), (94, 221468), (104, 200173), (188, 110734), (376, 55367), (611, 34072), (1222, 17036), (2444, 8518), (4259, 4888)]