18913958

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{151}}^1\times {\mathrm{389}}^1$

素因数の和:572

約数の個数: 32

約数和(自身を含む): 34145280

約数和(自身を除く): 15231322

約数列:

[1, 2, 7, 14, 23, 46, 151, 161, 302, 322, 389, 778, 1057, 2114, 2723, 3473, 5446, 6946, 8947, 17894, 24311, 48622, 58739, 62629, 117478, 125258, 411173, 822346, 1350997, 2701994, 9456979, 18913958]

約数ペア:

[(1, 18913958), (2, 9456979), (7, 2701994), (14, 1350997), (23, 822346), (46, 411173), (151, 125258), (161, 117478), (302, 62629), (322, 58739), (389, 48622), (778, 24311), (1057, 17894), (2114, 8947), (2723, 6946), (3473, 5446)]