21311316

素因数分解:

$2^2\times 3^3\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{353}}^1$

素因数の和:422

約数の個数: 96

約数和(自身を含む): 61057920

約数和(自身を除く): 39746604

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 27, 36, 39, 43, 52, 54, 78, 86, 108, 117, 129, 156, 172, 234, 258, 351, 353, 387, 468, 516, 559, 702, 706, 774, 1059, 1118, 1161, 1404, 1412, 1548, 1677, 2118, 2236, 2322, 3177, 3354, 4236, 4589, 4644, 5031, 6354, 6708, 9178, 9531, 10062, 12708, 13767, 15093, 15179, 18356, 19062, 20124, 27534, 30186, 30358, 38124, 41301, 45537, 55068, 60372, 60716, 82602, 91074, 123903, 136611, 165204, 182148, 197327, 247806, 273222, 394654, 409833, 495612, 546444, 591981, 789308, 819666, 1183962, 1639332, 1775943, 2367924, 3551886, 5327829, 7103772, 10655658, 21311316]

約数ペア:

[(1, 21311316), (2, 10655658), (3, 7103772), (4, 5327829), (6, 3551886), (9, 2367924), (12, 1775943), (13, 1639332), (18, 1183962), (26, 819666), (27, 789308), (36, 591981), (39, 546444), (43, 495612), (52, 409833), (54, 394654), (78, 273222), (86, 247806), (108, 197327), (117, 182148), (129, 165204), (156, 136611), (172, 123903), (234, 91074), (258, 82602), (351, 60716), (353, 60372), (387, 55068), (468, 45537), (516, 41301), (559, 38124), (702, 30358), (706, 30186), (774, 27534), (1059, 20124), (1118, 19062), (1161, 18356), (1404, 15179), (1412, 15093), (1548, 13767), (1677, 12708), (2118, 10062), (2236, 9531), (2322, 9178), (3177, 6708), (3354, 6354), (4236, 5031), (4589, 4644)]