21272368

素因数分解:

$2^4\times {\mathrm{13}}^2\times {\mathrm{7867}}^1$

素因数の和:7901

約数の個数: 30

約数和(自身を含む): 44635164

約数和(自身を除く): 23362796

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 169, 208, 338, 676, 1352, 2704, 7867, 15734, 31468, 62936, 102271, 125872, 204542, 409084, 818168, 1329523, 1636336, 2659046, 5318092, 10636184, 21272368]

約数ペア:

[(1, 21272368), (2, 10636184), (4, 5318092), (8, 2659046), (13, 1636336), (16, 1329523), (26, 818168), (52, 409084), (104, 204542), (169, 125872), (208, 102271), (338, 62936), (676, 31468), (1352, 15734), (2704, 7867)]