21215964

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{22961}}^1$

素因数の和:22986

約数の個数: 48

約数和(自身を含む): 61721856

約数和(自身を除く): 40505892

約数列:

[1, 2, 3, 4, 6, 7, 11, 12, 14, 21, 22, 28, 33, 42, 44, 66, 77, 84, 132, 154, 231, 308, 462, 924, 22961, 45922, 68883, 91844, 137766, 160727, 252571, 275532, 321454, 482181, 505142, 642908, 757713, 964362, 1010284, 1515426, 1767997, 1928724, 3030852, 3535994, 5303991, 7071988, 10607982, 21215964]

約数ペア:

[(1, 21215964), (2, 10607982), (3, 7071988), (4, 5303991), (6, 3535994), (7, 3030852), (11, 1928724), (12, 1767997), (14, 1515426), (21, 1010284), (22, 964362), (28, 757713), (33, 642908), (42, 505142), (44, 482181), (66, 321454), (77, 275532), (84, 252571), (132, 160727), (154, 137766), (231, 91844), (308, 68883), (462, 45922), (924, 22961)]