81820959

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{23}}^2\times {\mathrm{43}}^1\times {\mathrm{109}}^1$

素因数の和:212

約数の個数: 48

約数和(自身を含む): 128472960

約数和(自身を除く): 46652001

約数列:

[1, 3, 11, 23, 33, 43, 69, 109, 129, 253, 327, 473, 529, 759, 989, 1199, 1419, 1587, 2507, 2967, 3597, 4687, 5819, 7521, 10879, 14061, 17457, 22747, 27577, 32637, 51557, 57661, 68241, 82731, 107801, 154671, 172983, 250217, 323403, 634271, 750651, 1185811, 1902813, 2479423, 3557433, 7438269, 27273653, 81820959]

約数ペア:

[(1, 81820959), (3, 27273653), (11, 7438269), (23, 3557433), (33, 2479423), (43, 1902813), (69, 1185811), (109, 750651), (129, 634271), (253, 323403), (327, 250217), (473, 172983), (529, 154671), (759, 107801), (989, 82731), (1199, 68241), (1419, 57661), (1587, 51557), (2507, 32637), (2967, 27577), (3597, 22747), (4687, 17457), (5819, 14061), (7521, 10879)]