21027276

素因数分解:

$2^2\times 3^6\times {\mathrm{7211}}^1$

素因数の和:7233

約数の個数: 42

約数和(自身を含む): 55179012

約数和(自身を除く): 34151736

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 81, 108, 162, 243, 324, 486, 729, 972, 1458, 2916, 7211, 14422, 21633, 28844, 43266, 64899, 86532, 129798, 194697, 259596, 389394, 584091, 778788, 1168182, 1752273, 2336364, 3504546, 5256819, 7009092, 10513638, 21027276]

約数ペア:

[(1, 21027276), (2, 10513638), (3, 7009092), (4, 5256819), (6, 3504546), (9, 2336364), (12, 1752273), (18, 1168182), (27, 778788), (36, 584091), (54, 389394), (81, 259596), (108, 194697), (162, 129798), (243, 86532), (324, 64899), (486, 43266), (729, 28844), (972, 21633), (1458, 14422), (2916, 7211)]