18815175

素因数分解:

$3^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{4919}}^1$

素因数の和:4952

約数の個数: 36

約数和(自身を含む): 35689680

約数和(自身を除く): 16874505

約数列:

[1, 3, 5, 9, 15, 17, 25, 45, 51, 75, 85, 153, 225, 255, 425, 765, 1275, 3825, 4919, 14757, 24595, 44271, 73785, 83623, 122975, 221355, 250869, 368925, 418115, 752607, 1106775, 1254345, 2090575, 3763035, 6271725, 18815175]

約数ペア:

[(1, 18815175), (3, 6271725), (5, 3763035), (9, 2090575), (15, 1254345), (17, 1106775), (25, 752607), (45, 418115), (51, 368925), (75, 250869), (85, 221355), (153, 122975), (225, 83623), (255, 73785), (425, 44271), (765, 24595), (1275, 14757), (3825, 4919)]