18220956

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{271}}^1\times {\mathrm{431}}^1$

素因数の和:722

約数の個数: 48

約数和(自身を含む): 46061568

約数和(自身を除く): 27840612

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 271, 431, 542, 813, 862, 1084, 1293, 1626, 1724, 2586, 3252, 3523, 5172, 5603, 7046, 10569, 11206, 14092, 16809, 21138, 22412, 33618, 42276, 67236, 116801, 233602, 350403, 467204, 700806, 1401612, 1518413, 3036826, 4555239, 6073652, 9110478, 18220956]

約数ペア:

[(1, 18220956), (2, 9110478), (3, 6073652), (4, 4555239), (6, 3036826), (12, 1518413), (13, 1401612), (26, 700806), (39, 467204), (52, 350403), (78, 233602), (156, 116801), (271, 67236), (431, 42276), (542, 33618), (813, 22412), (862, 21138), (1084, 16809), (1293, 14092), (1626, 11206), (1724, 10569), (2586, 7046), (3252, 5603), (3523, 5172)]