19847925

素因数分解:

$3^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{5189}}^1$

素因数の和:5222

約数の個数: 36

約数和(自身を含む): 37648260

約数和(自身を除く): 17800335

約数列:

[1, 3, 5, 9, 15, 17, 25, 45, 51, 75, 85, 153, 225, 255, 425, 765, 1275, 3825, 5189, 15567, 25945, 46701, 77835, 88213, 129725, 233505, 264639, 389175, 441065, 793917, 1167525, 1323195, 2205325, 3969585, 6615975, 19847925]

約数ペア:

[(1, 19847925), (3, 6615975), (5, 3969585), (9, 2205325), (15, 1323195), (17, 1167525), (25, 793917), (45, 441065), (51, 389175), (75, 264639), (85, 233505), (153, 129725), (225, 88213), (255, 77835), (425, 46701), (765, 25945), (1275, 15567), (3825, 5189)]