18647595

素因数分解:

$3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{419}}^1$

素因数の和:496

約数の個数: 48

約数和(自身を含む): 34594560

約数和(自身を除く): 15946965

約数列:

[1, 3, 5, 9, 15, 23, 43, 45, 69, 115, 129, 207, 215, 345, 387, 419, 645, 989, 1035, 1257, 1935, 2095, 2967, 3771, 4945, 6285, 8901, 9637, 14835, 18017, 18855, 28911, 44505, 48185, 54051, 86733, 90085, 144555, 162153, 270255, 414391, 433665, 810765, 1243173, 2071955, 3729519, 6215865, 18647595]

約数ペア:

[(1, 18647595), (3, 6215865), (5, 3729519), (9, 2071955), (15, 1243173), (23, 810765), (43, 433665), (45, 414391), (69, 270255), (115, 162153), (129, 144555), (207, 90085), (215, 86733), (345, 54051), (387, 48185), (419, 44505), (645, 28911), (989, 18855), (1035, 18017), (1257, 14835), (1935, 9637), (2095, 8901), (2967, 6285), (3771, 4945)]