21384693

素因数分解:

$3^2\times {\mathrm{11}}^2\times {\mathrm{73}}^1\times {\mathrm{269}}^1$

素因数の和:370

約数の個数: 36

約数和(自身を含む): 34545420

約数和(自身を除く): 13160727

約数列:

[1, 3, 9, 11, 33, 73, 99, 121, 219, 269, 363, 657, 803, 807, 1089, 2409, 2421, 2959, 7227, 8833, 8877, 19637, 26499, 26631, 32549, 58911, 79497, 97647, 176733, 216007, 292941, 648021, 1944063, 2376077, 7128231, 21384693]

約数ペア:

[(1, 21384693), (3, 7128231), (9, 2376077), (11, 1944063), (33, 648021), (73, 292941), (99, 216007), (121, 176733), (219, 97647), (269, 79497), (363, 58911), (657, 32549), (803, 26631), (807, 26499), (1089, 19637), (2409, 8877), (2421, 8833), (2959, 7227)]