19971774

素因数分解:

$2^1\times 3^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{2539}}^1$

素因数の和:2589

約数の個数: 48

約数和(自身を含む): 47548800

約数和(自身を除く): 27577026

約数列:

[1, 2, 3, 6, 9, 18, 19, 23, 38, 46, 57, 69, 114, 138, 171, 207, 342, 414, 437, 874, 1311, 2539, 2622, 3933, 5078, 7617, 7866, 15234, 22851, 45702, 48241, 58397, 96482, 116794, 144723, 175191, 289446, 350382, 434169, 525573, 868338, 1051146, 1109543, 2219086, 3328629, 6657258, 9985887, 19971774]

約数ペア:

[(1, 19971774), (2, 9985887), (3, 6657258), (6, 3328629), (9, 2219086), (18, 1109543), (19, 1051146), (23, 868338), (38, 525573), (46, 434169), (57, 350382), (69, 289446), (114, 175191), (138, 144723), (171, 116794), (207, 96482), (342, 58397), (414, 48241), (437, 45702), (874, 22851), (1311, 15234), (2539, 7866), (2622, 7617), (3933, 5078)]