20721036392

素因数分解:

$2^3\times 7^1\times {\mathrm{2593}}^1\times {\mathrm{142699}}^1$

素因数の和:145305

約数の個数: 32

約数和(自身を含む): 44419656000

約数和(自身を除く): 23698619608

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 2593, 5186, 10372, 18151, 20744, 36302, 72604, 142699, 145208, 285398, 570796, 998893, 1141592, 1997786, 3995572, 7991144, 370018507, 740037014, 1480074028, 2590129549, 2960148056, 5180259098, 10360518196, 20721036392]

約数ペア:

[(1, 20721036392), (2, 10360518196), (4, 5180259098), (7, 2960148056), (8, 2590129549), (14, 1480074028), (28, 740037014), (56, 370018507), (2593, 7991144), (5186, 3995572), (10372, 1997786), (18151, 1141592), (20744, 998893), (36302, 570796), (72604, 285398), (142699, 145208)]