21480706

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{919}}^1$

素因数の和:994

約数の個数: 32

約数和(自身を含む): 37094400

約数和(自身を除く): 15613694

約数列:

[1, 2, 13, 26, 29, 31, 58, 62, 377, 403, 754, 806, 899, 919, 1798, 1838, 11687, 11947, 23374, 23894, 26651, 28489, 53302, 56978, 346463, 370357, 692926, 740714, 826181, 1652362, 10740353, 21480706]

約数ペア:

[(1, 21480706), (2, 10740353), (13, 1652362), (26, 826181), (29, 740714), (31, 692926), (58, 370357), (62, 346463), (377, 56978), (403, 53302), (754, 28489), (806, 26651), (899, 23894), (919, 23374), (1798, 11947), (1838, 11687)]