221215478

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{379}}^1\times {\mathrm{617}}^1$

素因数の和:1052

約数の個数: 32

約数和(自身を含む): 371986560

約数和(自身を除く): 150771082

約数列:

[1, 2, 11, 22, 43, 86, 379, 473, 617, 758, 946, 1234, 4169, 6787, 8338, 13574, 16297, 26531, 32594, 53062, 179267, 233843, 291841, 358534, 467686, 583682, 2572273, 5144546, 10055249, 20110498, 110607739, 221215478]

約数ペア:

[(1, 221215478), (2, 110607739), (11, 20110498), (22, 10055249), (43, 5144546), (86, 2572273), (379, 583682), (473, 467686), (617, 358534), (758, 291841), (946, 233843), (1234, 179267), (4169, 53062), (6787, 32594), (8338, 26531), (13574, 16297)]