21019054

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{2549}}^1$

素因数の和:2608

約数の個数: 32

約数和(自身を含む): 39168000

約数和(自身を除く): 18148946

約数列:

[1, 2, 7, 14, 19, 31, 38, 62, 133, 217, 266, 434, 589, 1178, 2549, 4123, 5098, 8246, 17843, 35686, 48431, 79019, 96862, 158038, 339017, 553133, 678034, 1106266, 1501361, 3002722, 10509527, 21019054]

約数ペア:

[(1, 21019054), (2, 10509527), (7, 3002722), (14, 1501361), (19, 1106266), (31, 678034), (38, 553133), (62, 339017), (133, 158038), (217, 96862), (266, 79019), (434, 48431), (589, 35686), (1178, 17843), (2549, 8246), (4123, 5098)]