18699138

素因数分解:

$2^1\times 3^2\times {\mathrm{23}}^1\times {\mathrm{31}}^2\times {\mathrm{47}}^1$

素因数の和:140

約数の個数: 72

約数和(自身を含む): 44613504

約数和(自身を除く): 25914366

約数列:

[1, 2, 3, 6, 9, 18, 23, 31, 46, 47, 62, 69, 93, 94, 138, 141, 186, 207, 279, 282, 414, 423, 558, 713, 846, 961, 1081, 1426, 1457, 1922, 2139, 2162, 2883, 2914, 3243, 4278, 4371, 5766, 6417, 6486, 8649, 8742, 9729, 12834, 13113, 17298, 19458, 22103, 26226, 33511, 44206, 45167, 66309, 67022, 90334, 100533, 132618, 135501, 198927, 201066, 271002, 301599, 397854, 406503, 603198, 813006, 1038841, 2077682, 3116523, 6233046, 9349569, 18699138]

約数ペア:

[(1, 18699138), (2, 9349569), (3, 6233046), (6, 3116523), (9, 2077682), (18, 1038841), (23, 813006), (31, 603198), (46, 406503), (47, 397854), (62, 301599), (69, 271002), (93, 201066), (94, 198927), (138, 135501), (141, 132618), (186, 100533), (207, 90334), (279, 67022), (282, 66309), (414, 45167), (423, 44206), (558, 33511), (713, 26226), (846, 22103), (961, 19458), (1081, 17298), (1426, 13113), (1457, 12834), (1922, 9729), (2139, 8742), (2162, 8649), (2883, 6486), (2914, 6417), (3243, 5766), (4278, 4371)]