21519122

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{677}}^1\times {\mathrm{691}}^1$

素因数の和:1393

約数の個数: 16

約数和(自身を含む): 33780672

約数和(自身を除く): 12261550

約数列:

[1, 2, 23, 46, 677, 691, 1354, 1382, 15571, 15893, 31142, 31786, 467807, 935614, 10759561, 21519122]

約数ペア:

[(1, 21519122), (2, 10759561), (23, 935614), (46, 467807), (677, 31786), (691, 31142), (1354, 15893), (1382, 15571)]