18405645

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{811}}^1$

素因数の和:925

約数の個数: 32

約数和(自身を含む): 31570560

約数和(自身を除く): 13164915

約数列:

[1, 3, 5, 15, 17, 51, 85, 89, 255, 267, 445, 811, 1335, 1513, 2433, 4055, 4539, 7565, 12165, 13787, 22695, 41361, 68935, 72179, 206805, 216537, 360895, 1082685, 1227043, 3681129, 6135215, 18405645]

約数ペア:

[(1, 18405645), (3, 6135215), (5, 3681129), (15, 1227043), (17, 1082685), (51, 360895), (85, 216537), (89, 206805), (255, 72179), (267, 68935), (445, 41361), (811, 22695), (1335, 13787), (1513, 12165), (2433, 7565), (4055, 4539)]