21353838

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^2\times {\mathrm{67}}^1\times {\mathrm{439}}^1$

素因数の和:533

約数の個数: 48

約数和(自身を含む): 47752320

約数和(自身を除く): 26398482

約数列:

[1, 2, 3, 6, 11, 22, 33, 66, 67, 121, 134, 201, 242, 363, 402, 439, 726, 737, 878, 1317, 1474, 2211, 2634, 4422, 4829, 8107, 9658, 14487, 16214, 24321, 28974, 29413, 48642, 53119, 58826, 88239, 106238, 159357, 176478, 318714, 323543, 647086, 970629, 1941258, 3558973, 7117946, 10676919, 21353838]

約数ペア:

[(1, 21353838), (2, 10676919), (3, 7117946), (6, 3558973), (11, 1941258), (22, 970629), (33, 647086), (66, 323543), (67, 318714), (121, 176478), (134, 159357), (201, 106238), (242, 88239), (363, 58826), (402, 53119), (439, 48642), (726, 29413), (737, 28974), (878, 24321), (1317, 16214), (1474, 14487), (2211, 9658), (2634, 8107), (4422, 4829)]