21091378

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{151}}^1\times {\mathrm{907}}^1$

素因数の和:1078

約数の個数: 32

約数和(自身を含む): 39748608

約数和(自身を除く): 18657230

約数列:

[1, 2, 7, 11, 14, 22, 77, 151, 154, 302, 907, 1057, 1661, 1814, 2114, 3322, 6349, 9977, 11627, 12698, 19954, 23254, 69839, 136957, 139678, 273914, 958699, 1506527, 1917398, 3013054, 10545689, 21091378]

約数ペア:

[(1, 21091378), (2, 10545689), (7, 3013054), (11, 1917398), (14, 1506527), (22, 958699), (77, 273914), (151, 139678), (154, 136957), (302, 69839), (907, 23254), (1057, 19954), (1661, 12698), (1814, 11627), (2114, 9977), (3322, 6349)]