21941465

素因数分解:

$5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{83}}^2$

素因数の和:198

約数の個数: 36

約数和(自身を含む): 33386724

約数和(自身を除く): 11445259

約数列:

[1, 5, 7, 13, 35, 49, 65, 83, 91, 245, 415, 455, 581, 637, 1079, 2905, 3185, 4067, 5395, 6889, 7553, 20335, 34445, 37765, 48223, 52871, 89557, 241115, 264355, 337561, 447785, 626899, 1687805, 3134495, 4388293, 21941465]

約数ペア:

[(1, 21941465), (5, 4388293), (7, 3134495), (13, 1687805), (35, 626899), (49, 447785), (65, 337561), (83, 264355), (91, 241115), (245, 89557), (415, 52871), (455, 48223), (581, 37765), (637, 34445), (1079, 20335), (2905, 7553), (3185, 6889), (4067, 5395)]