19640088

素因数分解:

$2^3\times 3^2\times {\mathrm{13}}^1\times {\mathrm{20983}}^1$

素因数の和:21008

約数の個数: 48

約数和(自身を含む): 57286320

約数和(自身を除く): 37646232

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 18, 24, 26, 36, 39, 52, 72, 78, 104, 117, 156, 234, 312, 468, 936, 20983, 41966, 62949, 83932, 125898, 167864, 188847, 251796, 272779, 377694, 503592, 545558, 755388, 818337, 1091116, 1510776, 1636674, 2182232, 2455011, 3273348, 4910022, 6546696, 9820044, 19640088]

約数ペア:

[(1, 19640088), (2, 9820044), (3, 6546696), (4, 4910022), (6, 3273348), (8, 2455011), (9, 2182232), (12, 1636674), (13, 1510776), (18, 1091116), (24, 818337), (26, 755388), (36, 545558), (39, 503592), (52, 377694), (72, 272779), (78, 251796), (104, 188847), (117, 167864), (156, 125898), (234, 83932), (312, 62949), (468, 41966), (936, 20983)]