20805603

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{4483}}^1$

素因数の和:4523

約数の個数: 32

約数和(自身を含む): 36158976

約数和(自身を除く): 15353373

約数列:

[1, 3, 7, 13, 17, 21, 39, 51, 91, 119, 221, 273, 357, 663, 1547, 4483, 4641, 13449, 31381, 58279, 76211, 94143, 174837, 228633, 407953, 533477, 990743, 1223859, 1600431, 2972229, 6935201, 20805603]

約数ペア:

[(1, 20805603), (3, 6935201), (7, 2972229), (13, 1600431), (17, 1223859), (21, 990743), (39, 533477), (51, 407953), (91, 228633), (119, 174837), (221, 94143), (273, 76211), (357, 58279), (663, 31381), (1547, 13449), (4483, 4641)]