18907264

素因数分解:

$2^7\times {\mathrm{17}}^1\times {\mathrm{8689}}^1$

素因数の和:8720

約数の個数: 32

約数和(自身を含む): 39887100

約数和(自身を除く): 20979836

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 64, 68, 128, 136, 272, 544, 1088, 2176, 8689, 17378, 34756, 69512, 139024, 147713, 278048, 295426, 556096, 590852, 1112192, 1181704, 2363408, 4726816, 9453632, 18907264]

約数ペア:

[(1, 18907264), (2, 9453632), (4, 4726816), (8, 2363408), (16, 1181704), (17, 1112192), (32, 590852), (34, 556096), (64, 295426), (68, 278048), (128, 147713), (136, 139024), (272, 69512), (544, 34756), (1088, 17378), (2176, 8689)]