221130392

素因数分解:

$2^3\times 7^1\times {\mathrm{199}}^1\times {\mathrm{19843}}^1$

素因数の和:20055

約数の個数: 32

約数和(自身を含む): 476256000

約数和(自身を除く): 255125608

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 199, 398, 796, 1393, 1592, 2786, 5572, 11144, 19843, 39686, 79372, 138901, 158744, 277802, 555604, 1111208, 3948757, 7897514, 15795028, 27641299, 31590056, 55282598, 110565196, 221130392]

約数ペア:

[(1, 221130392), (2, 110565196), (4, 55282598), (7, 31590056), (8, 27641299), (14, 15795028), (28, 7897514), (56, 3948757), (199, 1111208), (398, 555604), (796, 277802), (1393, 158744), (1592, 138901), (2786, 79372), (5572, 39686), (11144, 19843)]