23971521

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{823}}^1$

素因数の和:925

約数の個数: 32

約数和(自身を含む): 39024640

約数和(自身を除く): 15053119

約数列:

[1, 3, 7, 19, 21, 57, 73, 133, 219, 399, 511, 823, 1387, 1533, 2469, 4161, 5761, 9709, 15637, 17283, 29127, 46911, 60079, 109459, 180237, 328377, 420553, 1141501, 1261659, 3424503, 7990507, 23971521]

約数ペア:

[(1, 23971521), (3, 7990507), (7, 3424503), (19, 1261659), (21, 1141501), (57, 420553), (73, 328377), (133, 180237), (219, 109459), (399, 60079), (511, 46911), (823, 29127), (1387, 17283), (1533, 15637), (2469, 9709), (4161, 5761)]