21941283

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{179}}^1\times {\mathrm{449}}^1$

素因数の和:651

約数の個数: 32

約数和(自身を含む): 36288000

約数和(自身を除く): 14346717

約数列:

[1, 3, 7, 13, 21, 39, 91, 179, 273, 449, 537, 1253, 1347, 2327, 3143, 3759, 5837, 6981, 9429, 16289, 17511, 40859, 48867, 80371, 122577, 241113, 562597, 1044823, 1687791, 3134469, 7313761, 21941283]

約数ペア:

[(1, 21941283), (3, 7313761), (7, 3134469), (13, 1687791), (21, 1044823), (39, 562597), (91, 241113), (179, 122577), (273, 80371), (449, 48867), (537, 40859), (1253, 17511), (1347, 16289), (2327, 9429), (3143, 6981), (3759, 5837)]