81538884

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{323567}}^1$

素因数の和:323584

約数の個数: 36

約数和(自身を含む): 235557504

約数和(自身を除く): 154018620

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 252, 323567, 647134, 970701, 1294268, 1941402, 2264969, 2912103, 3882804, 4529938, 5824206, 6794907, 9059876, 11648412, 13589814, 20384721, 27179628, 40769442, 81538884]

約数ペア:

[(1, 81538884), (2, 40769442), (3, 27179628), (4, 20384721), (6, 13589814), (7, 11648412), (9, 9059876), (12, 6794907), (14, 5824206), (18, 4529938), (21, 3882804), (28, 2912103), (36, 2264969), (42, 1941402), (63, 1294268), (84, 970701), (126, 647134), (252, 323567)]