21512350

素因数分解:

$2^1\times 5^2\times {\mathrm{107}}^1\times {\mathrm{4021}}^1$

素因数の和:4140

約数の個数: 24

約数和(自身を含む): 40396968

約数和(自身を除く): 18884618

約数列:

[1, 2, 5, 10, 25, 50, 107, 214, 535, 1070, 2675, 4021, 5350, 8042, 20105, 40210, 100525, 201050, 430247, 860494, 2151235, 4302470, 10756175, 21512350]

約数ペア:

[(1, 21512350), (2, 10756175), (5, 4302470), (10, 2151235), (25, 860494), (50, 430247), (107, 201050), (214, 100525), (535, 40210), (1070, 20105), (2675, 8042), (4021, 5350)]