21013221356

素因数分解:

$2^2\times {\mathrm{97}}^1\times {\mathrm{6907}}^1\times {\mathrm{7841}}^1$

素因数の和:14849

約数の個数: 24

約数和(自身を含む): 37162359696

約数和(自身を除く): 16149138340

約数列:

[1, 2, 4, 97, 194, 388, 6907, 7841, 13814, 15682, 27628, 31364, 669979, 760577, 1339958, 1521154, 2679916, 3042308, 54157787, 108315574, 216631148, 5253305339, 10506610678, 21013221356]

約数ペア:

[(1, 21013221356), (2, 10506610678), (4, 5253305339), (97, 216631148), (194, 108315574), (388, 54157787), (6907, 3042308), (7841, 2679916), (13814, 1521154), (15682, 1339958), (27628, 760577), (31364, 669979)]