21478242

素因数分解:

$2^1\times 3^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{59}}^1\times {\mathrm{83}}^1$

素因数の和:207

約数の個数: 64

約数和(自身を含む): 47900160

約数和(自身を除く): 26421918

約数列:

[1, 2, 3, 6, 17, 34, 43, 51, 59, 83, 86, 102, 118, 129, 166, 177, 249, 258, 354, 498, 731, 1003, 1411, 1462, 2006, 2193, 2537, 2822, 3009, 3569, 4233, 4386, 4897, 5074, 6018, 7138, 7611, 8466, 9794, 10707, 14691, 15222, 21414, 29382, 43129, 60673, 83249, 86258, 121346, 129387, 166498, 182019, 210571, 249747, 258774, 364038, 421142, 499494, 631713, 1263426, 3579707, 7159414, 10739121, 21478242]

約数ペア:

[(1, 21478242), (2, 10739121), (3, 7159414), (6, 3579707), (17, 1263426), (34, 631713), (43, 499494), (51, 421142), (59, 364038), (83, 258774), (86, 249747), (102, 210571), (118, 182019), (129, 166498), (166, 129387), (177, 121346), (249, 86258), (258, 83249), (354, 60673), (498, 43129), (731, 29382), (1003, 21414), (1411, 15222), (1462, 14691), (2006, 10707), (2193, 9794), (2537, 8466), (2822, 7611), (3009, 7138), (3569, 6018), (4233, 5074), (4386, 4897)]