21189378

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{503}}^1$

素因数の和:591

約数の個数: 64

約数和(自身を含む): 52254720

約数和(自身を除く): 31065342

約数列:

[1, 2, 3, 6, 7, 14, 17, 21, 34, 42, 51, 59, 102, 118, 119, 177, 238, 354, 357, 413, 503, 714, 826, 1003, 1006, 1239, 1509, 2006, 2478, 3009, 3018, 3521, 6018, 7021, 7042, 8551, 10563, 14042, 17102, 21063, 21126, 25653, 29677, 42126, 51306, 59354, 59857, 89031, 119714, 178062, 179571, 207739, 359142, 415478, 504509, 623217, 1009018, 1246434, 1513527, 3027054, 3531563, 7063126, 10594689, 21189378]

約数ペア:

[(1, 21189378), (2, 10594689), (3, 7063126), (6, 3531563), (7, 3027054), (14, 1513527), (17, 1246434), (21, 1009018), (34, 623217), (42, 504509), (51, 415478), (59, 359142), (102, 207739), (118, 179571), (119, 178062), (177, 119714), (238, 89031), (354, 59857), (357, 59354), (413, 51306), (503, 42126), (714, 29677), (826, 25653), (1003, 21126), (1006, 21063), (1239, 17102), (1509, 14042), (2006, 10563), (2478, 8551), (3009, 7042), (3018, 7021), (3521, 6018)]