638004521

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{11621}}^1$

素因数の和:11693

約数の個数: 32

約数和(自身を含む): 856866816

約数和(自身を除く): 218862295

約数列:

[1, 7, 11, 23, 31, 77, 161, 217, 253, 341, 713, 1771, 2387, 4991, 7843, 11621, 54901, 81347, 127831, 267283, 360251, 894817, 1870981, 2521757, 2940113, 3962761, 8285773, 20580791, 27739327, 58000411, 91143503, 638004521]

約数ペア:

[(1, 638004521), (7, 91143503), (11, 58000411), (23, 27739327), (31, 20580791), (77, 8285773), (161, 3962761), (217, 2940113), (253, 2521757), (341, 1870981), (713, 894817), (1771, 360251), (2387, 267283), (4991, 127831), (7843, 81347), (11621, 54901)]