20093997

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{2351}}^1$

素因数の和:2409

約数の個数: 32

約数和(自身を含む): 34320384

約数和(自身を除く): 14226387

約数列:

[1, 3, 7, 11, 21, 33, 37, 77, 111, 231, 259, 407, 777, 1221, 2351, 2849, 7053, 8547, 16457, 25861, 49371, 77583, 86987, 181027, 260961, 543081, 608909, 956857, 1826727, 2870571, 6697999, 20093997]

約数ペア:

[(1, 20093997), (3, 6697999), (7, 2870571), (11, 1826727), (21, 956857), (33, 608909), (37, 543081), (77, 260961), (111, 181027), (231, 86987), (259, 77583), (407, 49371), (777, 25861), (1221, 16457), (2351, 8547), (2849, 7053)]