21188268

素因数分解:

$2^2\times 3^2\times {\mathrm{19}}^1\times {\mathrm{30977}}^1$

素因数の和:31006

約数の個数: 36

約数和(自身を含む): 56379960

約数和(自身を除く): 35191692

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 36, 38, 57, 76, 114, 171, 228, 342, 684, 30977, 61954, 92931, 123908, 185862, 278793, 371724, 557586, 588563, 1115172, 1177126, 1765689, 2354252, 3531378, 5297067, 7062756, 10594134, 21188268]

約数ペア:

[(1, 21188268), (2, 10594134), (3, 7062756), (4, 5297067), (6, 3531378), (9, 2354252), (12, 1765689), (18, 1177126), (19, 1115172), (36, 588563), (38, 557586), (57, 371724), (76, 278793), (114, 185862), (171, 123908), (228, 92931), (342, 61954), (684, 30977)]