18936036

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{163}}^1\times {\mathrm{461}}^1$

素因数の和:641

約数の個数: 72

約数和(自身を含む): 55159104

約数和(自身を除く): 36223068

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 163, 252, 326, 461, 489, 652, 922, 978, 1141, 1383, 1467, 1844, 1956, 2282, 2766, 2934, 3227, 3423, 4149, 4564, 5532, 5868, 6454, 6846, 8298, 9681, 10269, 12908, 13692, 16596, 19362, 20538, 29043, 38724, 41076, 58086, 75143, 116172, 150286, 225429, 300572, 450858, 526001, 676287, 901716, 1052002, 1352574, 1578003, 2104004, 2705148, 3156006, 4734009, 6312012, 9468018, 18936036]

約数ペア:

[(1, 18936036), (2, 9468018), (3, 6312012), (4, 4734009), (6, 3156006), (7, 2705148), (9, 2104004), (12, 1578003), (14, 1352574), (18, 1052002), (21, 901716), (28, 676287), (36, 526001), (42, 450858), (63, 300572), (84, 225429), (126, 150286), (163, 116172), (252, 75143), (326, 58086), (461, 41076), (489, 38724), (652, 29043), (922, 20538), (978, 19362), (1141, 16596), (1383, 13692), (1467, 12908), (1844, 10269), (1956, 9681), (2282, 8298), (2766, 6846), (2934, 6454), (3227, 5868), (3423, 5532), (4149, 4564)]