21221837320

素因数分解:

$2^3\times 5^1\times {\mathrm{181}}^1\times {\mathrm{2931193}}^1$

素因数の和:2931385

約数の個数: 32

約数和(自身を含む): 48012957720

約数和(自身を除く): 26791120400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 181, 362, 724, 905, 1448, 1810, 3620, 7240, 2931193, 5862386, 11724772, 14655965, 23449544, 29311930, 58623860, 117247720, 530545933, 1061091866, 2122183732, 2652729665, 4244367464, 5305459330, 10610918660, 21221837320]

約数ペア:

[(1, 21221837320), (2, 10610918660), (4, 5305459330), (5, 4244367464), (8, 2652729665), (10, 2122183732), (20, 1061091866), (40, 530545933), (181, 117247720), (362, 58623860), (724, 29311930), (905, 23449544), (1448, 14655965), (1810, 11724772), (3620, 5862386), (7240, 2931193)]