21031888589

素因数分解:

${\mathrm{17}}^2\times {\mathrm{31}}^1\times {\mathrm{139}}^1\times {\mathrm{16889}}^1$

素因数の和:17093

約数の個数: 24

約数和(自身を含む): 23229830400

約数和(自身を除く): 2197941811

約数列:

[1, 17, 31, 139, 289, 527, 2363, 4309, 8959, 16889, 40171, 73253, 287113, 523559, 1245301, 2347571, 4880921, 8900503, 39908707, 72774701, 151308551, 678448019, 1237169917, 21031888589]

約数ペア:

[(1, 21031888589), (17, 1237169917), (31, 678448019), (139, 151308551), (289, 72774701), (527, 39908707), (2363, 8900503), (4309, 4880921), (8959, 2347571), (16889, 1245301), (40171, 523559), (73253, 287113)]