21054264895

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{241}}^1\times {\mathrm{719}}^1\times {\mathrm{1279}}^1$

素因数の和:2263

約数の個数: 32

約数和(自身を含む): 26763264000

約数和(自身を除く): 5708999105

約数列:

[1, 5, 19, 95, 241, 719, 1205, 1279, 3595, 4579, 6395, 13661, 22895, 24301, 68305, 121505, 173279, 308239, 866395, 919601, 1541195, 3292301, 4598005, 5856541, 16461505, 17472419, 29282705, 87362095, 221623841, 1108119205, 4210852979, 21054264895]

約数ペア:

[(1, 21054264895), (5, 4210852979), (19, 1108119205), (95, 221623841), (241, 87362095), (719, 29282705), (1205, 17472419), (1279, 16461505), (3595, 5856541), (4579, 4598005), (6395, 3292301), (13661, 1541195), (22895, 919601), (24301, 866395), (68305, 308239), (121505, 173279)]