21693910

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{479}}^1\times {\mathrm{647}}^1$

素因数の和:1140

約数の個数: 32

約数和(自身を含む): 44789760

約数和(自身を除く): 23095850

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 479, 647, 958, 1294, 2395, 3235, 3353, 4529, 4790, 6470, 6706, 9058, 16765, 22645, 33530, 45290, 309913, 619826, 1549565, 2169391, 3099130, 4338782, 10846955, 21693910]

約数ペア:

[(1, 21693910), (2, 10846955), (5, 4338782), (7, 3099130), (10, 2169391), (14, 1549565), (35, 619826), (70, 309913), (479, 45290), (647, 33530), (958, 22645), (1294, 16765), (2395, 9058), (3235, 6706), (3353, 6470), (4529, 4790)]