21117520701

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{373}}^1\times {\mathrm{216917}}^1$

素因数の和:217325

約数の個数: 24

約数和(自身を含む): 31639659480

約数和(自身を除く): 10522138779

約数列:

[1, 3, 9, 29, 87, 261, 373, 1119, 3357, 10817, 32451, 97353, 216917, 650751, 1952253, 6290593, 18871779, 56615337, 80910041, 242730123, 728190369, 2346391189, 7039173567, 21117520701]

約数ペア:

[(1, 21117520701), (3, 7039173567), (9, 2346391189), (29, 728190369), (87, 242730123), (261, 80910041), (373, 56615337), (1119, 18871779), (3357, 6290593), (10817, 1952253), (32451, 650751), (97353, 216917)]