19984212

素因数分解:

$2^2\times 3^3\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{127}}^1$

素因数の和:218

約数の個数: 96

約数和(自身を含む): 55050240

約数和(自身を除く): 35066028

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 31, 36, 47, 54, 62, 93, 94, 108, 124, 127, 141, 186, 188, 254, 279, 282, 372, 381, 423, 508, 558, 564, 762, 837, 846, 1116, 1143, 1269, 1457, 1524, 1674, 1692, 2286, 2538, 2914, 3348, 3429, 3937, 4371, 4572, 5076, 5828, 5969, 6858, 7874, 8742, 11811, 11938, 13113, 13716, 15748, 17484, 17907, 23622, 23876, 26226, 35433, 35814, 39339, 47244, 52452, 53721, 70866, 71628, 78678, 106299, 107442, 141732, 157356, 161163, 185039, 212598, 214884, 322326, 370078, 425196, 555117, 644652, 740156, 1110234, 1665351, 2220468, 3330702, 4996053, 6661404, 9992106, 19984212]

約数ペア:

[(1, 19984212), (2, 9992106), (3, 6661404), (4, 4996053), (6, 3330702), (9, 2220468), (12, 1665351), (18, 1110234), (27, 740156), (31, 644652), (36, 555117), (47, 425196), (54, 370078), (62, 322326), (93, 214884), (94, 212598), (108, 185039), (124, 161163), (127, 157356), (141, 141732), (186, 107442), (188, 106299), (254, 78678), (279, 71628), (282, 70866), (372, 53721), (381, 52452), (423, 47244), (508, 39339), (558, 35814), (564, 35433), (762, 26226), (837, 23876), (846, 23622), (1116, 17907), (1143, 17484), (1269, 15748), (1457, 13716), (1524, 13113), (1674, 11938), (1692, 11811), (2286, 8742), (2538, 7874), (2914, 6858), (3348, 5969), (3429, 5828), (3937, 5076), (4371, 4572)]