21031623361

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{563}}^1\times {\mathrm{6271}}^1$

素因数の和:6901

約数の個数: 32

約数和(自身を含む): 25808928768

約数和(自身を除く): 4777305407

約数列:

[1, 7, 23, 37, 161, 259, 563, 851, 3941, 5957, 6271, 12949, 20831, 43897, 90643, 144233, 145817, 232027, 479113, 1009631, 1624189, 3353791, 3530573, 5336621, 24714011, 37356347, 81203179, 130631201, 568422253, 914418407, 3004517623, 21031623361]

約数ペア:

[(1, 21031623361), (7, 3004517623), (23, 914418407), (37, 568422253), (161, 130631201), (259, 81203179), (563, 37356347), (851, 24714011), (3941, 5336621), (5957, 3530573), (6271, 3353791), (12949, 1624189), (20831, 1009631), (43897, 479113), (90643, 232027), (144233, 145817)]