18821145

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{883}}^1$

素因数の和:934

約数の個数: 48

約数和(自身を含む): 36279360

約数和(自身を除く): 17458215

約数列:

[1, 3, 5, 7, 15, 21, 29, 35, 49, 87, 105, 145, 147, 203, 245, 435, 609, 735, 883, 1015, 1421, 2649, 3045, 4263, 4415, 6181, 7105, 13245, 18543, 21315, 25607, 30905, 43267, 76821, 92715, 128035, 129801, 179249, 216335, 384105, 537747, 649005, 896245, 1254743, 2688735, 3764229, 6273715, 18821145]

約数ペア:

[(1, 18821145), (3, 6273715), (5, 3764229), (7, 2688735), (15, 1254743), (21, 896245), (29, 649005), (35, 537747), (49, 384105), (87, 216335), (105, 179249), (145, 129801), (147, 128035), (203, 92715), (245, 76821), (435, 43267), (609, 30905), (735, 25607), (883, 21315), (1015, 18543), (1421, 13245), (2649, 7105), (3045, 6181), (4263, 4415)]