660520329

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{991}}^1\times {\mathrm{1867}}^1$

素因数の和:2885

約数の個数: 32

約数和(自身を含む): 1067360256

約数和(自身を除く): 406839927

約数列:

[1, 3, 7, 17, 21, 51, 119, 357, 991, 1867, 2973, 5601, 6937, 13069, 16847, 20811, 31739, 39207, 50541, 95217, 117929, 222173, 353787, 666519, 1850197, 5550591, 12951379, 31453349, 38854137, 94360047, 220173443, 660520329]

約数ペア:

[(1, 660520329), (3, 220173443), (7, 94360047), (17, 38854137), (21, 31453349), (51, 12951379), (119, 5550591), (357, 1850197), (991, 666519), (1867, 353787), (2973, 222173), (5601, 117929), (6937, 95217), (13069, 50541), (16847, 39207), (20811, 31739)]