71791951

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{113}}^1\times {\mathrm{223}}^1$

素因数の和:391

約数の個数: 32

約数和(自身を含む): 93155328

約数和(自身を除く): 21363377

約数列:

[1, 7, 11, 37, 77, 113, 223, 259, 407, 791, 1243, 1561, 2453, 2849, 4181, 8251, 8701, 17171, 25199, 29267, 45991, 57757, 90761, 176393, 277189, 321937, 635327, 932363, 1940323, 6526541, 10255993, 71791951]

約数ペア:

[(1, 71791951), (7, 10255993), (11, 6526541), (37, 1940323), (77, 932363), (113, 635327), (223, 321937), (259, 277189), (407, 176393), (791, 90761), (1243, 57757), (1561, 45991), (2453, 29267), (2849, 25199), (4181, 17171), (8251, 8701)]