21321936

素因数分解:

$2^4\times 3^2\times {\mathrm{263}}^1\times {\mathrm{563}}^1$

素因数の和:840

約数の個数: 60

約数和(自身を含む): 60005088

約数和(自身を除く): 38683152

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144, 263, 526, 563, 789, 1052, 1126, 1578, 1689, 2104, 2252, 2367, 3156, 3378, 4208, 4504, 4734, 5067, 6312, 6756, 9008, 9468, 10134, 12624, 13512, 18936, 20268, 27024, 37872, 40536, 81072, 148069, 296138, 444207, 592276, 888414, 1184552, 1332621, 1776828, 2369104, 2665242, 3553656, 5330484, 7107312, 10660968, 21321936]

約数ペア:

[(1, 21321936), (2, 10660968), (3, 7107312), (4, 5330484), (6, 3553656), (8, 2665242), (9, 2369104), (12, 1776828), (16, 1332621), (18, 1184552), (24, 888414), (36, 592276), (48, 444207), (72, 296138), (144, 148069), (263, 81072), (526, 40536), (563, 37872), (789, 27024), (1052, 20268), (1126, 18936), (1578, 13512), (1689, 12624), (2104, 10134), (2252, 9468), (2367, 9008), (3156, 6756), (3378, 6312), (4208, 5067), (4504, 4734)]