21522585

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{2887}}^1$

素因数の和:2973

約数の個数: 32

約数和(自身を含む): 39923712

約数和(自身を除く): 18401127

約数列:

[1, 3, 5, 7, 15, 21, 35, 71, 105, 213, 355, 497, 1065, 1491, 2485, 2887, 7455, 8661, 14435, 20209, 43305, 60627, 101045, 204977, 303135, 614931, 1024885, 1434839, 3074655, 4304517, 7174195, 21522585]

約数ペア:

[(1, 21522585), (3, 7174195), (5, 4304517), (7, 3074655), (15, 1434839), (21, 1024885), (35, 614931), (71, 303135), (105, 204977), (213, 101045), (355, 60627), (497, 43305), (1065, 20209), (1491, 14435), (2485, 8661), (2887, 7455)]