21437553

素因数分解:

$3^1\times {\mathrm{101}}^1\times {\mathrm{139}}^1\times {\mathrm{509}}^1$

素因数の和:752

約数の個数: 16

約数和(自身を含む): 29131200

約数和(自身を除く): 7693647

約数列:

[1, 3, 101, 139, 303, 417, 509, 1527, 14039, 42117, 51409, 70751, 154227, 212253, 7145851, 21437553]

約数ペア:

[(1, 21437553), (3, 7145851), (101, 212253), (139, 154227), (303, 70751), (417, 51409), (509, 42117), (1527, 14039)]