21385812

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{254593}}^1$

素因数の和:254607

約数の個数: 24

約数和(自身を含む): 57029056

約数和(自身を除く): 35643244

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 254593, 509186, 763779, 1018372, 1527558, 1782151, 3055116, 3564302, 5346453, 7128604, 10692906, 21385812]

約数ペア:

[(1, 21385812), (2, 10692906), (3, 7128604), (4, 5346453), (6, 3564302), (7, 3055116), (12, 1782151), (14, 1527558), (21, 1018372), (28, 763779), (42, 509186), (84, 254593)]