20199417

素因数分解:

$3^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{137}}^1$

素因数の和:230

約数の個数: 48

約数和(自身を含む): 33981120

約数和(自身を除く): 13781703

約数列:

[1, 3, 7, 17, 21, 49, 51, 59, 119, 137, 147, 177, 357, 411, 413, 833, 959, 1003, 1239, 2329, 2499, 2877, 2891, 3009, 6713, 6987, 7021, 8083, 8673, 16303, 20139, 21063, 24249, 48909, 49147, 56581, 114121, 137411, 147441, 169743, 342363, 396067, 412233, 961877, 1188201, 2885631, 6733139, 20199417]

約数ペア:

[(1, 20199417), (3, 6733139), (7, 2885631), (17, 1188201), (21, 961877), (49, 412233), (51, 396067), (59, 342363), (119, 169743), (137, 147441), (147, 137411), (177, 114121), (357, 56581), (411, 49147), (413, 48909), (833, 24249), (959, 21063), (1003, 20139), (1239, 16303), (2329, 8673), (2499, 8083), (2877, 7021), (2891, 6987), (3009, 6713)]