21862036

素因数分解:

$2^2\times 7^2\times {\mathrm{71}}^1\times {\mathrm{1571}}^1$

素因数の和:1660

約数の個数: 36

約数和(自身を含む): 45160416

約数和(自身を除く): 23298380

約数列:

[1, 2, 4, 7, 14, 28, 49, 71, 98, 142, 196, 284, 497, 994, 1571, 1988, 3142, 3479, 6284, 6958, 10997, 13916, 21994, 43988, 76979, 111541, 153958, 223082, 307916, 446164, 780787, 1561574, 3123148, 5465509, 10931018, 21862036]

約数ペア:

[(1, 21862036), (2, 10931018), (4, 5465509), (7, 3123148), (14, 1561574), (28, 780787), (49, 446164), (71, 307916), (98, 223082), (142, 153958), (196, 111541), (284, 76979), (497, 43988), (994, 21994), (1571, 13916), (1988, 10997), (3142, 6958), (3479, 6284)]