21041909906

素因数分解:

$2^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{263}}^1\times {\mathrm{10453}}^1$

素因数の和:10850

約数の個数: 32

約数和(自身を含む): 32787089280

約数和(自身を除く): 11745179374

約数列:

[1, 2, 43, 86, 89, 178, 263, 526, 3827, 7654, 10453, 11309, 20906, 22618, 23407, 46814, 449479, 898958, 930317, 1006501, 1860634, 2013002, 2749139, 5498278, 40003631, 80007262, 118212977, 236425954, 244673371, 489346742, 10520954953, 21041909906]

約数ペア:

[(1, 21041909906), (2, 10520954953), (43, 489346742), (86, 244673371), (89, 236425954), (178, 118212977), (263, 80007262), (526, 40003631), (3827, 5498278), (7654, 2749139), (10453, 2013002), (11309, 1860634), (20906, 1006501), (22618, 930317), (23407, 898958), (46814, 449479)]