21011292

素因数分解:

$2^2\times 3^3\times {\mathrm{257}}^1\times {\mathrm{757}}^1$

素因数の和:1027

約数の個数: 48

約数和(自身を含む): 54757920

約数和(自身を除く): 33746628

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 108, 257, 514, 757, 771, 1028, 1514, 1542, 2271, 2313, 3028, 3084, 4542, 4626, 6813, 6939, 9084, 9252, 13626, 13878, 20439, 27252, 27756, 40878, 81756, 194549, 389098, 583647, 778196, 1167294, 1750941, 2334588, 3501882, 5252823, 7003764, 10505646, 21011292]

約数ペア:

[(1, 21011292), (2, 10505646), (3, 7003764), (4, 5252823), (6, 3501882), (9, 2334588), (12, 1750941), (18, 1167294), (27, 778196), (36, 583647), (54, 389098), (108, 194549), (257, 81756), (514, 40878), (757, 27756), (771, 27252), (1028, 20439), (1514, 13878), (1542, 13626), (2271, 9252), (2313, 9084), (3028, 6939), (3084, 6813), (4542, 4626)]