18719784

素因数分解:

$2^3\times 3^2\times {\mathrm{31}}^1\times {\mathrm{8387}}^1$

素因数の和:8430

約数の個数: 48

約数和(自身を含む): 52341120

約数和(自身を除く): 33621336

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 31, 36, 62, 72, 93, 124, 186, 248, 279, 372, 558, 744, 1116, 2232, 8387, 16774, 25161, 33548, 50322, 67096, 75483, 100644, 150966, 201288, 259997, 301932, 519994, 603864, 779991, 1039988, 1559982, 2079976, 2339973, 3119964, 4679946, 6239928, 9359892, 18719784]

約数ペア:

[(1, 18719784), (2, 9359892), (3, 6239928), (4, 4679946), (6, 3119964), (8, 2339973), (9, 2079976), (12, 1559982), (18, 1039988), (24, 779991), (31, 603864), (36, 519994), (62, 301932), (72, 259997), (93, 201288), (124, 150966), (186, 100644), (248, 75483), (279, 67096), (372, 50322), (558, 33548), (744, 25161), (1116, 16774), (2232, 8387)]