18972585

素因数分解:

$3^2\times 5^1\times {\mathrm{23}}^2\times {\mathrm{797}}^1$

素因数の和:854

約数の個数: 36

約数和(自身を含む): 34420932

約数和(自身を除く): 15448347

約数列:

[1, 3, 5, 9, 15, 23, 45, 69, 115, 207, 345, 529, 797, 1035, 1587, 2391, 2645, 3985, 4761, 7173, 7935, 11955, 18331, 23805, 35865, 54993, 91655, 164979, 274965, 421613, 824895, 1264839, 2108065, 3794517, 6324195, 18972585]

約数ペア:

[(1, 18972585), (3, 6324195), (5, 3794517), (9, 2108065), (15, 1264839), (23, 824895), (45, 421613), (69, 274965), (115, 164979), (207, 91655), (345, 54993), (529, 35865), (797, 23805), (1035, 18331), (1587, 11955), (2391, 7935), (2645, 7173), (3985, 4761)]