21401328

素因数分解:

$2^4\times 3^1\times {\mathrm{13}}^1\times {\mathrm{34297}}^1$

素因数の和:34321

約数の個数: 40

約数和(自身を含む): 59541328

約数和(自身を除く): 38140000

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 39, 48, 52, 78, 104, 156, 208, 312, 624, 34297, 68594, 102891, 137188, 205782, 274376, 411564, 445861, 548752, 823128, 891722, 1337583, 1646256, 1783444, 2675166, 3566888, 5350332, 7133776, 10700664, 21401328]

約数ペア:

[(1, 21401328), (2, 10700664), (3, 7133776), (4, 5350332), (6, 3566888), (8, 2675166), (12, 1783444), (13, 1646256), (16, 1337583), (24, 891722), (26, 823128), (39, 548752), (48, 445861), (52, 411564), (78, 274376), (104, 205782), (156, 137188), (208, 102891), (312, 68594), (624, 34297)]