21700455

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{233}}^1\times {\mathrm{887}}^1$

素因数の和:1135

約数の個数: 32

約数和(自身を含む): 39896064

約数和(自身を除く): 18195609

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 233, 699, 887, 1165, 1631, 2661, 3495, 4435, 4893, 6209, 8155, 13305, 18627, 24465, 31045, 93135, 206671, 620013, 1033355, 1446697, 3100065, 4340091, 7233485, 21700455]

約数ペア:

[(1, 21700455), (3, 7233485), (5, 4340091), (7, 3100065), (15, 1446697), (21, 1033355), (35, 620013), (105, 206671), (233, 93135), (699, 31045), (887, 24465), (1165, 18627), (1631, 13305), (2661, 8155), (3495, 6209), (4435, 4893)]