21084464

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{42509}}^1$

素因数の和:42548

約数の個数: 20

約数和(自身を含む): 42169920

約数和(自身を除く): 21085456

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 42509, 85018, 170036, 340072, 680144, 1317779, 2635558, 5271116, 10542232, 21084464]

約数ペア:

[(1, 21084464), (2, 10542232), (4, 5271116), (8, 2635558), (16, 1317779), (31, 680144), (62, 340072), (124, 170036), (248, 85018), (496, 42509)]