21869900

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{16823}}^1$

素因数の和:16850

約数の個数: 36

約数和(自身を含む): 51111312

約数和(自身を除く): 29241412

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 260, 325, 650, 1300, 16823, 33646, 67292, 84115, 168230, 218699, 336460, 420575, 437398, 841150, 874796, 1093495, 1682300, 2186990, 4373980, 5467475, 10934950, 21869900]

約数ペア:

[(1, 21869900), (2, 10934950), (4, 5467475), (5, 4373980), (10, 2186990), (13, 1682300), (20, 1093495), (25, 874796), (26, 841150), (50, 437398), (52, 420575), (65, 336460), (100, 218699), (130, 168230), (260, 84115), (325, 67292), (650, 33646), (1300, 16823)]