21615952

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{151}}^1\times {\mathrm{389}}^1$

素因数の和:571

約数の個数: 40

約数和(自身を含む): 44104320

約数和(自身を除く): 22488368

約数列:

[1, 2, 4, 8, 16, 23, 46, 92, 151, 184, 302, 368, 389, 604, 778, 1208, 1556, 2416, 3112, 3473, 6224, 6946, 8947, 13892, 17894, 27784, 35788, 55568, 58739, 71576, 117478, 143152, 234956, 469912, 939824, 1350997, 2701994, 5403988, 10807976, 21615952]

約数ペア:

[(1, 21615952), (2, 10807976), (4, 5403988), (8, 2701994), (16, 1350997), (23, 939824), (46, 469912), (92, 234956), (151, 143152), (184, 117478), (302, 71576), (368, 58739), (389, 55568), (604, 35788), (778, 27784), (1208, 17894), (1556, 13892), (2416, 8947), (3112, 6946), (3473, 6224)]