20992902

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{73}}^1\times {\mathrm{167}}^1$

素因数の和:293

約数の個数: 64

約数和(自身を含む): 50125824

約数和(自身を除く): 29132922

約数列:

[1, 2, 3, 6, 7, 14, 21, 41, 42, 73, 82, 123, 146, 167, 219, 246, 287, 334, 438, 501, 511, 574, 861, 1002, 1022, 1169, 1533, 1722, 2338, 2993, 3066, 3507, 5986, 6847, 7014, 8979, 12191, 13694, 17958, 20541, 20951, 24382, 36573, 41082, 41902, 47929, 62853, 73146, 85337, 95858, 125706, 143787, 170674, 256011, 287574, 499831, 512022, 999662, 1499493, 2998986, 3498817, 6997634, 10496451, 20992902]

約数ペア:

[(1, 20992902), (2, 10496451), (3, 6997634), (6, 3498817), (7, 2998986), (14, 1499493), (21, 999662), (41, 512022), (42, 499831), (73, 287574), (82, 256011), (123, 170674), (146, 143787), (167, 125706), (219, 95858), (246, 85337), (287, 73146), (334, 62853), (438, 47929), (501, 41902), (511, 41082), (574, 36573), (861, 24382), (1002, 20951), (1022, 20541), (1169, 17958), (1533, 13694), (1722, 12191), (2338, 8979), (2993, 7014), (3066, 6847), (3507, 5986)]