18316725

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{139}}^1\times {\mathrm{251}}^1$

素因数の和:410

約数の個数: 48

約数和(自身を含む): 34997760

約数和(自身を除く): 16681035

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 75, 105, 139, 175, 251, 417, 525, 695, 753, 973, 1255, 1757, 2085, 2919, 3475, 3765, 4865, 5271, 6275, 8785, 10425, 14595, 18825, 24325, 26355, 34889, 43925, 72975, 104667, 131775, 174445, 244223, 523335, 732669, 872225, 1221115, 2616675, 3663345, 6105575, 18316725]

約数ペア:

[(1, 18316725), (3, 6105575), (5, 3663345), (7, 2616675), (15, 1221115), (21, 872225), (25, 732669), (35, 523335), (75, 244223), (105, 174445), (139, 131775), (175, 104667), (251, 72975), (417, 43925), (525, 34889), (695, 26355), (753, 24325), (973, 18825), (1255, 14595), (1757, 10425), (2085, 8785), (2919, 6275), (3475, 5271), (3765, 4865)]