221380705

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^3\times {\mathrm{2879}}^1$

素因数の和:2930

約数の個数: 32

約数和(自身を含む): 329011200

約数和(自身を除く): 107630495

約数列:

[1, 5, 7, 13, 35, 65, 91, 169, 455, 845, 1183, 2197, 2879, 5915, 10985, 14395, 15379, 20153, 37427, 76895, 100765, 187135, 261989, 486551, 1309945, 2432755, 3405857, 6325163, 17029285, 31625815, 44276141, 221380705]

約数ペア:

[(1, 221380705), (5, 44276141), (7, 31625815), (13, 17029285), (35, 6325163), (65, 3405857), (91, 2432755), (169, 1309945), (455, 486551), (845, 261989), (1183, 187135), (2197, 100765), (2879, 76895), (5915, 37427), (10985, 20153), (14395, 15379)]