21409113

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{421}}^1$

素因数の和:525

約数の個数: 32

約数和(自身を含む): 33057792

約数和(自身を除く): 11648679

約数列:

[1, 3, 11, 23, 33, 67, 69, 201, 253, 421, 737, 759, 1263, 1541, 2211, 4623, 4631, 9683, 13893, 16951, 28207, 29049, 50853, 84621, 106513, 310277, 319539, 648761, 930831, 1946283, 7136371, 21409113]

約数ペア:

[(1, 21409113), (3, 7136371), (11, 1946283), (23, 930831), (33, 648761), (67, 319539), (69, 310277), (201, 106513), (253, 84621), (421, 50853), (737, 29049), (759, 28207), (1263, 16951), (1541, 13893), (2211, 9683), (4623, 4631)]