219872972

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{211}}^1\times {\mathrm{2153}}^1$

素因数の和:2390

約数の個数: 36

約数和(自身を含む): 425139288

約数和(自身を除く): 205266316

約数列:

[1, 2, 4, 11, 22, 44, 121, 211, 242, 422, 484, 844, 2153, 2321, 4306, 4642, 8612, 9284, 23683, 25531, 47366, 51062, 94732, 102124, 260513, 454283, 521026, 908566, 1042052, 1817132, 4997113, 9994226, 19988452, 54968243, 109936486, 219872972]

約数ペア:

[(1, 219872972), (2, 109936486), (4, 54968243), (11, 19988452), (22, 9994226), (44, 4997113), (121, 1817132), (211, 1042052), (242, 908566), (422, 521026), (484, 454283), (844, 260513), (2153, 102124), (2321, 94732), (4306, 51062), (4642, 47366), (8612, 25531), (9284, 23683)]