18281055

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{241}}^1\times {\mathrm{389}}^1$

素因数の和:651

約数の個数: 32

約数和(自身を含む): 31711680

約数和(自身を除く): 13430625

約数列:

[1, 3, 5, 13, 15, 39, 65, 195, 241, 389, 723, 1167, 1205, 1945, 3133, 3615, 5057, 5835, 9399, 15171, 15665, 25285, 46995, 75855, 93749, 281247, 468745, 1218737, 1406235, 3656211, 6093685, 18281055]

約数ペア:

[(1, 18281055), (3, 6093685), (5, 3656211), (13, 1406235), (15, 1218737), (39, 468745), (65, 281247), (195, 93749), (241, 75855), (389, 46995), (723, 25285), (1167, 15665), (1205, 15171), (1945, 9399), (3133, 5835), (3615, 5057)]