21086982

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{101}}^1\times {\mathrm{1657}}^1$

素因数の和:1773

約数の個数: 48

約数和(自身を含む): 52764192

約数和(自身を除く): 31677210

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 101, 126, 202, 303, 606, 707, 909, 1414, 1657, 1818, 2121, 3314, 4242, 4971, 6363, 9942, 11599, 12726, 14913, 23198, 29826, 34797, 69594, 104391, 167357, 208782, 334714, 502071, 1004142, 1171499, 1506213, 2342998, 3012426, 3514497, 7028994, 10543491, 21086982]

約数ペア:

[(1, 21086982), (2, 10543491), (3, 7028994), (6, 3514497), (7, 3012426), (9, 2342998), (14, 1506213), (18, 1171499), (21, 1004142), (42, 502071), (63, 334714), (101, 208782), (126, 167357), (202, 104391), (303, 69594), (606, 34797), (707, 29826), (909, 23198), (1414, 14913), (1657, 12726), (1818, 11599), (2121, 9942), (3314, 6363), (4242, 4971)]