21198954

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{683}}^1\times {\mathrm{739}}^1$

素因数の和:1434

約数の個数: 32

約数和(自身を含む): 48591360

約数和(自身を除く): 27392406

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 683, 739, 1366, 1478, 2049, 2217, 4098, 4434, 4781, 5173, 9562, 10346, 14343, 15519, 28686, 31038, 504737, 1009474, 1514211, 3028422, 3533159, 7066318, 10599477, 21198954]

約数ペア:

[(1, 21198954), (2, 10599477), (3, 7066318), (6, 3533159), (7, 3028422), (14, 1514211), (21, 1009474), (42, 504737), (683, 31038), (739, 28686), (1366, 15519), (1478, 14343), (2049, 10346), (2217, 9562), (4098, 5173), (4434, 4781)]