18940515

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{191}}^1\times {\mathrm{601}}^1$

素因数の和:811

約数の個数: 32

約数和(自身を含む): 33288192

約数和(自身を除く): 14347677

約数列:

[1, 3, 5, 11, 15, 33, 55, 165, 191, 573, 601, 955, 1803, 2101, 2865, 3005, 6303, 6611, 9015, 10505, 19833, 31515, 33055, 99165, 114791, 344373, 573955, 1262701, 1721865, 3788103, 6313505, 18940515]

約数ペア:

[(1, 18940515), (3, 6313505), (5, 3788103), (11, 1721865), (15, 1262701), (33, 573955), (55, 344373), (165, 114791), (191, 99165), (573, 33055), (601, 31515), (955, 19833), (1803, 10505), (2101, 9015), (2865, 6611), (3005, 6303)]