21237326

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^2$

素因数の和:149

約数の個数: 48

約数和(自身を含む): 39000960

約数和(自身を除く): 17763634

約数列:

[1, 2, 11, 19, 22, 23, 38, 46, 47, 94, 209, 253, 418, 437, 506, 517, 874, 893, 1034, 1081, 1786, 2162, 2209, 4418, 4807, 9614, 9823, 11891, 19646, 20539, 23782, 24299, 41078, 41971, 48598, 50807, 83942, 101614, 225929, 451858, 461681, 558877, 923362, 965333, 1117754, 1930666, 10618663, 21237326]

約数ペア:

[(1, 21237326), (2, 10618663), (11, 1930666), (19, 1117754), (22, 965333), (23, 923362), (38, 558877), (46, 461681), (47, 451858), (94, 225929), (209, 101614), (253, 83942), (418, 50807), (437, 48598), (506, 41971), (517, 41078), (874, 24299), (893, 23782), (1034, 20539), (1081, 19646), (1786, 11891), (2162, 9823), (2209, 9614), (4418, 4807)]