21295540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{152111}}^1$

素因数の和:152127

約数の個数: 24

約数和(自身を含む): 51109632

約数和(自身を除く): 29814092

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 152111, 304222, 608444, 760555, 1064777, 1521110, 2129554, 3042220, 4259108, 5323885, 10647770, 21295540]

約数ペア:

[(1, 21295540), (2, 10647770), (4, 5323885), (5, 4259108), (7, 3042220), (10, 2129554), (14, 1521110), (20, 1064777), (28, 760555), (35, 608444), (70, 304222), (140, 152111)]