18751785

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{113}}^1$

素因数の和:194

約数の個数: 64

約数和(自身を含む): 34933248

約数和(自身を除く): 16181463

約数列:

[1, 3, 5, 13, 15, 23, 37, 39, 65, 69, 111, 113, 115, 185, 195, 299, 339, 345, 481, 555, 565, 851, 897, 1443, 1469, 1495, 1695, 2405, 2553, 2599, 4181, 4255, 4407, 4485, 7215, 7345, 7797, 11063, 12543, 12765, 12995, 20905, 22035, 33189, 33787, 38985, 54353, 55315, 62715, 96163, 101361, 163059, 165945, 168935, 271765, 288489, 480815, 506805, 815295, 1250119, 1442445, 3750357, 6250595, 18751785]

約数ペア:

[(1, 18751785), (3, 6250595), (5, 3750357), (13, 1442445), (15, 1250119), (23, 815295), (37, 506805), (39, 480815), (65, 288489), (69, 271765), (111, 168935), (113, 165945), (115, 163059), (185, 101361), (195, 96163), (299, 62715), (339, 55315), (345, 54353), (481, 38985), (555, 33787), (565, 33189), (851, 22035), (897, 20905), (1443, 12995), (1469, 12765), (1495, 12543), (1695, 11063), (2405, 7797), (2553, 7345), (2599, 7215), (4181, 4485), (4255, 4407)]