21289002

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{197}}^1$

素因数の和:323

約数の個数: 64

約数和(自身を含む): 51093504

約数和(自身を除く): 29804502

約数列:

[1, 2, 3, 6, 7, 14, 21, 31, 42, 62, 83, 93, 166, 186, 197, 217, 249, 394, 434, 498, 581, 591, 651, 1162, 1182, 1302, 1379, 1743, 2573, 2758, 3486, 4137, 5146, 6107, 7719, 8274, 12214, 15438, 16351, 18011, 18321, 32702, 36022, 36642, 42749, 49053, 54033, 85498, 98106, 108066, 114457, 128247, 228914, 256494, 343371, 506881, 686742, 1013762, 1520643, 3041286, 3548167, 7096334, 10644501, 21289002]

約数ペア:

[(1, 21289002), (2, 10644501), (3, 7096334), (6, 3548167), (7, 3041286), (14, 1520643), (21, 1013762), (31, 686742), (42, 506881), (62, 343371), (83, 256494), (93, 228914), (166, 128247), (186, 114457), (197, 108066), (217, 98106), (249, 85498), (394, 54033), (434, 49053), (498, 42749), (581, 36642), (591, 36022), (651, 32702), (1162, 18321), (1182, 18011), (1302, 16351), (1379, 15438), (1743, 12214), (2573, 8274), (2758, 7719), (3486, 6107), (4137, 5146)]