20543964

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{199}}^1\times {\mathrm{1229}}^1$

素因数の和:1442

約数の個数: 48

約数和(自身を含む): 55104000

約数和(自身を除く): 34560036

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 199, 398, 597, 796, 1194, 1229, 1393, 2388, 2458, 2786, 3687, 4179, 4916, 5572, 7374, 8358, 8603, 14748, 16716, 17206, 25809, 34412, 51618, 103236, 244571, 489142, 733713, 978284, 1467426, 1711997, 2934852, 3423994, 5135991, 6847988, 10271982, 20543964]

約数ペア:

[(1, 20543964), (2, 10271982), (3, 6847988), (4, 5135991), (6, 3423994), (7, 2934852), (12, 1711997), (14, 1467426), (21, 978284), (28, 733713), (42, 489142), (84, 244571), (199, 103236), (398, 51618), (597, 34412), (796, 25809), (1194, 17206), (1229, 16716), (1393, 14748), (2388, 8603), (2458, 8358), (2786, 7374), (3687, 5572), (4179, 4916)]