18511215

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{229}}^1\times {\mathrm{317}}^1$

素因数の和:571

約数の個数: 32

約数和(自身を含む): 31596480

約数和(自身を除く): 13085265

約数列:

[1, 3, 5, 15, 17, 51, 85, 229, 255, 317, 687, 951, 1145, 1585, 3435, 3893, 4755, 5389, 11679, 16167, 19465, 26945, 58395, 72593, 80835, 217779, 362965, 1088895, 1234081, 3702243, 6170405, 18511215]

約数ペア:

[(1, 18511215), (3, 6170405), (5, 3702243), (15, 1234081), (17, 1088895), (51, 362965), (85, 217779), (229, 80835), (255, 72593), (317, 58395), (687, 26945), (951, 19465), (1145, 16167), (1585, 11679), (3435, 5389), (3893, 4755)]