21524853

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{739}}^1$

素因数の和:841

約数の個数: 32

約数和(自身を含む): 35046400

約数和(自身を除く): 13521547

約数列:

[1, 3, 7, 19, 21, 57, 73, 133, 219, 399, 511, 739, 1387, 1533, 2217, 4161, 5173, 9709, 14041, 15519, 29127, 42123, 53947, 98287, 161841, 294861, 377629, 1024993, 1132887, 3074979, 7174951, 21524853]

約数ペア:

[(1, 21524853), (3, 7174951), (7, 3074979), (19, 1132887), (21, 1024993), (57, 377629), (73, 294861), (133, 161841), (219, 98287), (399, 53947), (511, 42123), (739, 29127), (1387, 15519), (1533, 14041), (2217, 9709), (4161, 5173)]