21115116

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{751}}^1$

素因数の和:843

約数の個数: 72

約数和(自身を含む): 59125248

約数和(自身を除く): 38010132

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 33, 36, 44, 66, 71, 99, 132, 142, 198, 213, 284, 396, 426, 639, 751, 781, 852, 1278, 1502, 1562, 2253, 2343, 2556, 3004, 3124, 4506, 4686, 6759, 7029, 8261, 9012, 9372, 13518, 14058, 16522, 24783, 27036, 28116, 33044, 49566, 53321, 74349, 99132, 106642, 148698, 159963, 213284, 297396, 319926, 479889, 586531, 639852, 959778, 1173062, 1759593, 1919556, 2346124, 3519186, 5278779, 7038372, 10557558, 21115116]

約数ペア:

[(1, 21115116), (2, 10557558), (3, 7038372), (4, 5278779), (6, 3519186), (9, 2346124), (11, 1919556), (12, 1759593), (18, 1173062), (22, 959778), (33, 639852), (36, 586531), (44, 479889), (66, 319926), (71, 297396), (99, 213284), (132, 159963), (142, 148698), (198, 106642), (213, 99132), (284, 74349), (396, 53321), (426, 49566), (639, 33044), (751, 28116), (781, 27036), (852, 24783), (1278, 16522), (1502, 14058), (1562, 13518), (2253, 9372), (2343, 9012), (2556, 8261), (3004, 7029), (3124, 6759), (4506, 4686)]