16787820

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{39971}}^1$

素因数の和:39990

約数の個数: 48

約数和(自身を含む): 53722368

約数和(自身を除く): 36934548

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, 39971, 79942, 119913, 159884, 199855, 239826, 279797, 399710, 479652, 559594, 599565, 799420, 839391, 1119188, 1199130, 1398985, 1678782, 2398260, 2797970, 3357564, 4196955, 5595940, 8393910, 16787820]

約数ペア:

[(1, 16787820), (2, 8393910), (3, 5595940), (4, 4196955), (5, 3357564), (6, 2797970), (7, 2398260), (10, 1678782), (12, 1398985), (14, 1199130), (15, 1119188), (20, 839391), (21, 799420), (28, 599565), (30, 559594), (35, 479652), (42, 399710), (60, 279797), (70, 239826), (84, 199855), (105, 159884), (140, 119913), (210, 79942), (420, 39971)]