21597774

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^2\times {\mathrm{71}}^1\times {\mathrm{419}}^1$

素因数の和:517

約数の個数: 48

約数和(自身を含む): 48263040

約数和(自身を除く): 26665266

約数列:

[1, 2, 3, 6, 11, 22, 33, 66, 71, 121, 142, 213, 242, 363, 419, 426, 726, 781, 838, 1257, 1562, 2343, 2514, 4609, 4686, 8591, 9218, 13827, 17182, 25773, 27654, 29749, 50699, 51546, 59498, 89247, 101398, 152097, 178494, 304194, 327239, 654478, 981717, 1963434, 3599629, 7199258, 10798887, 21597774]

約数ペア:

[(1, 21597774), (2, 10798887), (3, 7199258), (6, 3599629), (11, 1963434), (22, 981717), (33, 654478), (66, 327239), (71, 304194), (121, 178494), (142, 152097), (213, 101398), (242, 89247), (363, 59498), (419, 51546), (426, 50699), (726, 29749), (781, 27654), (838, 25773), (1257, 17182), (1562, 13827), (2343, 9218), (2514, 8591), (4609, 4686)]