18759986

素因数分解:

$2^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{131}}^1\times {\mathrm{193}}^1$

素因数の和:386

約数の個数: 32

約数和(自身を含む): 33187968

約数和(自身を除く): 14427982

約数列:

[1, 2, 7, 14, 53, 106, 131, 193, 262, 371, 386, 742, 917, 1351, 1834, 2702, 6943, 10229, 13886, 20458, 25283, 48601, 50566, 71603, 97202, 143206, 176981, 353962, 1339999, 2679998, 9379993, 18759986]

約数ペア:

[(1, 18759986), (2, 9379993), (7, 2679998), (14, 1339999), (53, 353962), (106, 176981), (131, 143206), (193, 97202), (262, 71603), (371, 50566), (386, 48601), (742, 25283), (917, 20458), (1351, 13886), (1834, 10229), (2702, 6943)]