19815948

素因数分解:

$2^2\times 3^3\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{251}}^1$

素因数の和:324

約数の個数: 96

約数和(自身を含む): 55883520

約数和(自身を除く): 36067572

約数列:

[1, 2, 3, 4, 6, 9, 12, 17, 18, 27, 34, 36, 43, 51, 54, 68, 86, 102, 108, 129, 153, 172, 204, 251, 258, 306, 387, 459, 502, 516, 612, 731, 753, 774, 918, 1004, 1161, 1462, 1506, 1548, 1836, 2193, 2259, 2322, 2924, 3012, 4267, 4386, 4518, 4644, 6579, 6777, 8534, 8772, 9036, 10793, 12801, 13158, 13554, 17068, 19737, 21586, 25602, 26316, 27108, 32379, 38403, 39474, 43172, 51204, 64758, 76806, 78948, 97137, 115209, 129516, 153612, 183481, 194274, 230418, 291411, 366962, 388548, 460836, 550443, 582822, 733924, 1100886, 1165644, 1651329, 2201772, 3302658, 4953987, 6605316, 9907974, 19815948]

約数ペア:

[(1, 19815948), (2, 9907974), (3, 6605316), (4, 4953987), (6, 3302658), (9, 2201772), (12, 1651329), (17, 1165644), (18, 1100886), (27, 733924), (34, 582822), (36, 550443), (43, 460836), (51, 388548), (54, 366962), (68, 291411), (86, 230418), (102, 194274), (108, 183481), (129, 153612), (153, 129516), (172, 115209), (204, 97137), (251, 78948), (258, 76806), (306, 64758), (387, 51204), (459, 43172), (502, 39474), (516, 38403), (612, 32379), (731, 27108), (753, 26316), (774, 25602), (918, 21586), (1004, 19737), (1161, 17068), (1462, 13554), (1506, 13158), (1548, 12801), (1836, 10793), (2193, 9036), (2259, 8772), (2322, 8534), (2924, 6777), (3012, 6579), (4267, 4644), (4386, 4518)]