20696205

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{239}}^1\times {\mathrm{251}}^1$

素因数の和:521

約数の個数: 32

約数和(自身を含む): 34836480

約数和(自身を除く): 14140275

約数列:

[1, 3, 5, 15, 23, 69, 115, 239, 251, 345, 717, 753, 1195, 1255, 3585, 3765, 5497, 5773, 16491, 17319, 27485, 28865, 59989, 82455, 86595, 179967, 299945, 899835, 1379747, 4139241, 6898735, 20696205]

約数ペア:

[(1, 20696205), (3, 6898735), (5, 4139241), (15, 1379747), (23, 899835), (69, 299945), (115, 179967), (239, 86595), (251, 82455), (345, 59989), (717, 28865), (753, 27485), (1195, 17319), (1255, 16491), (3585, 5773), (3765, 5497)]