18036945

素因数分解:

$3^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{157}}^1$

素因数の和:231

約数の個数: 64

約数和(自身を含む): 34583040

約数和(自身を除く): 16546095

約数列:

[1, 3, 5, 9, 15, 23, 27, 37, 45, 69, 111, 115, 135, 157, 185, 207, 333, 345, 471, 555, 621, 785, 851, 999, 1035, 1413, 1665, 2355, 2553, 3105, 3611, 4239, 4255, 4995, 5809, 7065, 7659, 10833, 12765, 17427, 18055, 21195, 22977, 29045, 32499, 38295, 52281, 54165, 87135, 97497, 114885, 133607, 156843, 162495, 261405, 400821, 487485, 668035, 784215, 1202463, 2004105, 3607389, 6012315, 18036945]

約数ペア:

[(1, 18036945), (3, 6012315), (5, 3607389), (9, 2004105), (15, 1202463), (23, 784215), (27, 668035), (37, 487485), (45, 400821), (69, 261405), (111, 162495), (115, 156843), (135, 133607), (157, 114885), (185, 97497), (207, 87135), (333, 54165), (345, 52281), (471, 38295), (555, 32499), (621, 29045), (785, 22977), (851, 21195), (999, 18055), (1035, 17427), (1413, 12765), (1665, 10833), (2355, 7659), (2553, 7065), (3105, 5809), (3611, 4995), (4239, 4255)]