21505986

素因数分解:

$2^1\times 3^5\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{137}}^1$

素因数の和:190

約数の個数: 96

約数和(自身を含む): 54250560

約数和(自身を除く): 32744574

約数列:

[1, 2, 3, 6, 9, 17, 18, 19, 27, 34, 38, 51, 54, 57, 81, 102, 114, 137, 153, 162, 171, 243, 274, 306, 323, 342, 411, 459, 486, 513, 646, 822, 918, 969, 1026, 1233, 1377, 1539, 1938, 2329, 2466, 2603, 2754, 2907, 3078, 3699, 4131, 4617, 4658, 5206, 5814, 6987, 7398, 7809, 8262, 8721, 9234, 11097, 13974, 15618, 17442, 20961, 22194, 23427, 26163, 33291, 41922, 44251, 46854, 52326, 62883, 66582, 70281, 78489, 88502, 125766, 132753, 140562, 156978, 188649, 210843, 265506, 377298, 398259, 421686, 565947, 632529, 796518, 1131894, 1194777, 1265058, 2389554, 3584331, 7168662, 10752993, 21505986]

約数ペア:

[(1, 21505986), (2, 10752993), (3, 7168662), (6, 3584331), (9, 2389554), (17, 1265058), (18, 1194777), (19, 1131894), (27, 796518), (34, 632529), (38, 565947), (51, 421686), (54, 398259), (57, 377298), (81, 265506), (102, 210843), (114, 188649), (137, 156978), (153, 140562), (162, 132753), (171, 125766), (243, 88502), (274, 78489), (306, 70281), (323, 66582), (342, 62883), (411, 52326), (459, 46854), (486, 44251), (513, 41922), (646, 33291), (822, 26163), (918, 23427), (969, 22194), (1026, 20961), (1233, 17442), (1377, 15618), (1539, 13974), (1938, 11097), (2329, 9234), (2466, 8721), (2603, 8262), (2754, 7809), (2907, 7398), (3078, 6987), (3699, 5814), (4131, 5206), (4617, 4658)]