408956961

素因数分解:

$3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{457}}^1\times {\mathrm{991}}^1$

素因数の和:1501

約数の個数: 32

約数和(自身を含む): 639705088

約数和(自身を除く): 230748127

約数列:

[1, 3, 7, 21, 43, 129, 301, 457, 903, 991, 1371, 2973, 3199, 6937, 9597, 19651, 20811, 42613, 58953, 127839, 137557, 298291, 412671, 452887, 894873, 1358661, 3170209, 9510627, 19474141, 58422423, 136318987, 408956961]

約数ペア:

[(1, 408956961), (3, 136318987), (7, 58422423), (21, 19474141), (43, 9510627), (129, 3170209), (301, 1358661), (457, 894873), (903, 452887), (991, 412671), (1371, 298291), (2973, 137557), (3199, 127839), (6937, 58953), (9597, 42613), (19651, 20811)]