21563990

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{18121}}^1$

素因数の和:18152

約数の個数: 32

約数和(自身を含む): 46972224

約数和(自身を除く): 25408234

約数列:

[1, 2, 5, 7, 10, 14, 17, 34, 35, 70, 85, 119, 170, 238, 595, 1190, 18121, 36242, 90605, 126847, 181210, 253694, 308057, 616114, 634235, 1268470, 1540285, 2156399, 3080570, 4312798, 10781995, 21563990]

約数ペア:

[(1, 21563990), (2, 10781995), (5, 4312798), (7, 3080570), (10, 2156399), (14, 1540285), (17, 1268470), (34, 634235), (35, 616114), (70, 308057), (85, 253694), (119, 181210), (170, 126847), (238, 90605), (595, 36242), (1190, 18121)]