21152830

素因数分解:

$2^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{107}}^1\times {\mathrm{373}}^1$

素因数の和:540

約数の個数: 32

約数和(自身を含む): 39261024

約数和(自身を除く): 18108194

約数列:

[1, 2, 5, 10, 53, 106, 107, 214, 265, 373, 530, 535, 746, 1070, 1865, 3730, 5671, 11342, 19769, 28355, 39538, 39911, 56710, 79822, 98845, 197690, 199555, 399110, 2115283, 4230566, 10576415, 21152830]

約数ペア:

[(1, 21152830), (2, 10576415), (5, 4230566), (10, 2115283), (53, 399110), (106, 199555), (107, 197690), (214, 98845), (265, 79822), (373, 56710), (530, 39911), (535, 39538), (746, 28355), (1070, 19769), (1865, 11342), (3730, 5671)]