20212842664

素因数分解:

$2^3\times 7^1\times {\mathrm{821}}^1\times {\mathrm{439639}}^1$

素因数の和:440473

約数の個数: 32

約数和(自身を含む): 43366089600

約数和(自身を除く): 23153246936

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 821, 1642, 3284, 5747, 6568, 11494, 22988, 45976, 439639, 879278, 1758556, 3077473, 3517112, 6154946, 12309892, 24619784, 360943619, 721887238, 1443774476, 2526605333, 2887548952, 5053210666, 10106421332, 20212842664]

約数ペア:

[(1, 20212842664), (2, 10106421332), (4, 5053210666), (7, 2887548952), (8, 2526605333), (14, 1443774476), (28, 721887238), (56, 360943619), (821, 24619784), (1642, 12309892), (3284, 6154946), (5747, 3517112), (6568, 3077473), (11494, 1758556), (22988, 879278), (45976, 439639)]