21239766

素因数分解:

$2^1\times 3^3\times {\mathrm{17}}^2\times {\mathrm{1361}}^1$

素因数の和:1406

約数の個数: 48

約数和(自身を含む): 50176080

約数和(自身を除く): 28936314

約数列:

[1, 2, 3, 6, 9, 17, 18, 27, 34, 51, 54, 102, 153, 289, 306, 459, 578, 867, 918, 1361, 1734, 2601, 2722, 4083, 5202, 7803, 8166, 12249, 15606, 23137, 24498, 36747, 46274, 69411, 73494, 138822, 208233, 393329, 416466, 624699, 786658, 1179987, 1249398, 2359974, 3539961, 7079922, 10619883, 21239766]

約数ペア:

[(1, 21239766), (2, 10619883), (3, 7079922), (6, 3539961), (9, 2359974), (17, 1249398), (18, 1179987), (27, 786658), (34, 624699), (51, 416466), (54, 393329), (102, 208233), (153, 138822), (289, 73494), (306, 69411), (459, 46274), (578, 36747), (867, 24498), (918, 23137), (1361, 15606), (1734, 12249), (2601, 8166), (2722, 7803), (4083, 5202)]