21150878853

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{67}}^1\times {\mathrm{172223}}^1$

素因数の和:172353

約数の個数: 32

約数和(自身を含む): 31479791616

約数和(自身を除く): 10328912763

約数列:

[1, 3, 13, 39, 47, 67, 141, 201, 611, 871, 1833, 2613, 3149, 9447, 40937, 122811, 172223, 516669, 2238899, 6716697, 8094481, 11538941, 24283443, 34616823, 105228253, 150006233, 315684759, 450018699, 542330227, 1626990681, 7050292951, 21150878853]

約数ペア:

[(1, 21150878853), (3, 7050292951), (13, 1626990681), (39, 542330227), (47, 450018699), (67, 315684759), (141, 150006233), (201, 105228253), (611, 34616823), (871, 24283443), (1833, 11538941), (2613, 8094481), (3149, 6716697), (9447, 2238899), (40937, 516669), (122811, 172223)]