21295554

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{137}}^1\times {\mathrm{3701}}^1$

素因数の和:3850

約数の個数: 32

約数和(自身を含む): 49044096

約数和(自身を除く): 27748542

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 137, 274, 411, 822, 959, 1918, 2877, 3701, 5754, 7402, 11103, 22206, 25907, 51814, 77721, 155442, 507037, 1014074, 1521111, 3042222, 3549259, 7098518, 10647777, 21295554]

約数ペア:

[(1, 21295554), (2, 10647777), (3, 7098518), (6, 3549259), (7, 3042222), (14, 1521111), (21, 1014074), (42, 507037), (137, 155442), (274, 77721), (411, 51814), (822, 25907), (959, 22206), (1918, 11103), (2877, 7402), (3701, 5754)]