19517820

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{46471}}^1$

素因数の和:46490

約数の個数: 48

約数和(自身を含む): 62458368

約数和(自身を除く): 42940548

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 46471, 92942, 139413, 185884, 232355, 278826, 325297, 464710, 557652, 650594, 697065, 929420, 975891, 1301188, 1394130, 1626485, 1951782, 2788260, 3252970, 3903564, 4879455, 6505940, 9758910, 19517820]

約数ペア:

[(1, 19517820), (2, 9758910), (3, 6505940), (4, 4879455), (5, 3903564), (6, 3252970), (7, 2788260), (10, 1951782), (12, 1626485), (14, 1394130), (15, 1301188), (20, 975891), (21, 929420), (28, 697065), (30, 650594), (35, 557652), (42, 464710), (60, 325297), (70, 278826), (84, 232355), (105, 185884), (140, 139413), (210, 92942), (420, 46471)]