21002938

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{59}}^1\times {\mathrm{1471}}^1$

素因数の和:1554

約数の個数: 24

約数和(自身を含む): 35239680

約数和(自身を除く): 14236742

約数列:

[1, 2, 11, 22, 59, 118, 121, 242, 649, 1298, 1471, 2942, 7139, 14278, 16181, 32362, 86789, 173578, 177991, 355982, 954679, 1909358, 10501469, 21002938]

約数ペア:

[(1, 21002938), (2, 10501469), (11, 1909358), (22, 954679), (59, 355982), (118, 177991), (121, 173578), (242, 86789), (649, 32362), (1298, 16181), (1471, 14278), (2942, 7139)]