21495294

素因数分解:

$2^1\times 3^6\times {\mathrm{23}}^1\times {\mathrm{641}}^1$

素因数の和:684

約数の個数: 56

約数和(自身を含む): 50522832

約数和(自身を除く): 29027538

約数列:

[1, 2, 3, 6, 9, 18, 23, 27, 46, 54, 69, 81, 138, 162, 207, 243, 414, 486, 621, 641, 729, 1242, 1282, 1458, 1863, 1923, 3726, 3846, 5589, 5769, 11178, 11538, 14743, 16767, 17307, 29486, 33534, 34614, 44229, 51921, 88458, 103842, 132687, 155763, 265374, 311526, 398061, 467289, 796122, 934578, 1194183, 2388366, 3582549, 7165098, 10747647, 21495294]

約数ペア:

[(1, 21495294), (2, 10747647), (3, 7165098), (6, 3582549), (9, 2388366), (18, 1194183), (23, 934578), (27, 796122), (46, 467289), (54, 398061), (69, 311526), (81, 265374), (138, 155763), (162, 132687), (207, 103842), (243, 88458), (414, 51921), (486, 44229), (621, 34614), (641, 33534), (729, 29486), (1242, 17307), (1282, 16767), (1458, 14743), (1863, 11538), (1923, 11178), (3726, 5769), (3846, 5589)]