21027370

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{3301}}^1$

素因数の和:3335

約数の個数: 48

約数和(自身を含む): 47429928

約数和(自身を除く): 26402558

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 49, 65, 70, 91, 98, 130, 182, 245, 455, 490, 637, 910, 1274, 3185, 3301, 6370, 6602, 16505, 23107, 33010, 42913, 46214, 85826, 115535, 161749, 214565, 231070, 300391, 323498, 429130, 600782, 808745, 1501955, 1617490, 2102737, 3003910, 4205474, 10513685, 21027370]

約数ペア:

[(1, 21027370), (2, 10513685), (5, 4205474), (7, 3003910), (10, 2102737), (13, 1617490), (14, 1501955), (26, 808745), (35, 600782), (49, 429130), (65, 323498), (70, 300391), (91, 231070), (98, 214565), (130, 161749), (182, 115535), (245, 85826), (455, 46214), (490, 42913), (637, 33010), (910, 23107), (1274, 16505), (3185, 6602), (3301, 6370)]