19857726

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{359}}^1\times {\mathrm{439}}^1$

素因数の和:813

約数の個数: 48

約数和(自身を含む): 49420800

約数和(自身を除く): 29563074

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 359, 439, 718, 878, 1077, 1317, 2154, 2513, 2634, 3073, 3231, 3951, 5026, 6146, 6462, 7539, 7902, 9219, 15078, 18438, 22617, 27657, 45234, 55314, 157601, 315202, 472803, 945606, 1103207, 1418409, 2206414, 2836818, 3309621, 6619242, 9928863, 19857726]

約数ペア:

[(1, 19857726), (2, 9928863), (3, 6619242), (6, 3309621), (7, 2836818), (9, 2206414), (14, 1418409), (18, 1103207), (21, 945606), (42, 472803), (63, 315202), (126, 157601), (359, 55314), (439, 45234), (718, 27657), (878, 22617), (1077, 18438), (1317, 15078), (2154, 9219), (2513, 7902), (2634, 7539), (3073, 6462), (3231, 6146), (3951, 5026)]