21582756

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{431}}^1$

素因数の和:561

約数の個数: 72

約数和(自身を含む): 59439744

約数和(自身を除く): 37856988

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 107, 117, 156, 214, 234, 321, 428, 431, 468, 642, 862, 963, 1284, 1293, 1391, 1724, 1926, 2586, 2782, 3852, 3879, 4173, 5172, 5564, 5603, 7758, 8346, 11206, 12519, 15516, 16692, 16809, 22412, 25038, 33618, 46117, 50076, 50427, 67236, 92234, 100854, 138351, 184468, 201708, 276702, 415053, 553404, 599521, 830106, 1199042, 1660212, 1798563, 2398084, 3597126, 5395689, 7194252, 10791378, 21582756]

約数ペア:

[(1, 21582756), (2, 10791378), (3, 7194252), (4, 5395689), (6, 3597126), (9, 2398084), (12, 1798563), (13, 1660212), (18, 1199042), (26, 830106), (36, 599521), (39, 553404), (52, 415053), (78, 276702), (107, 201708), (117, 184468), (156, 138351), (214, 100854), (234, 92234), (321, 67236), (428, 50427), (431, 50076), (468, 46117), (642, 33618), (862, 25038), (963, 22412), (1284, 16809), (1293, 16692), (1391, 15516), (1724, 12519), (1926, 11206), (2586, 8346), (2782, 7758), (3852, 5603), (3879, 5564), (4173, 5172)]