19537695

素因数分解:

$3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{439}}^1$

素因数の和:516

約数の個数: 48

約数和(自身を含む): 36241920

約数和(自身を除く): 16704225

約数列:

[1, 3, 5, 9, 15, 23, 43, 45, 69, 115, 129, 207, 215, 345, 387, 439, 645, 989, 1035, 1317, 1935, 2195, 2967, 3951, 4945, 6585, 8901, 10097, 14835, 18877, 19755, 30291, 44505, 50485, 56631, 90873, 94385, 151455, 169893, 283155, 434171, 454365, 849465, 1302513, 2170855, 3907539, 6512565, 19537695]

約数ペア:

[(1, 19537695), (3, 6512565), (5, 3907539), (9, 2170855), (15, 1302513), (23, 849465), (43, 454365), (45, 434171), (69, 283155), (115, 169893), (129, 151455), (207, 94385), (215, 90873), (345, 56631), (387, 50485), (439, 44505), (645, 30291), (989, 19755), (1035, 18877), (1317, 14835), (1935, 10097), (2195, 8901), (2967, 6585), (3951, 4945)]