21564710

素因数分解:

$2^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{167}}^1\times {\mathrm{349}}^1$

素因数の和:560

約数の個数: 32

約数和(自身を含む): 40219200

約数和(自身を除く): 18654490

約数列:

[1, 2, 5, 10, 37, 74, 167, 185, 334, 349, 370, 698, 835, 1670, 1745, 3490, 6179, 12358, 12913, 25826, 30895, 58283, 61790, 64565, 116566, 129130, 291415, 582830, 2156471, 4312942, 10782355, 21564710]

約数ペア:

[(1, 21564710), (2, 10782355), (5, 4312942), (10, 2156471), (37, 582830), (74, 291415), (167, 129130), (185, 116566), (334, 64565), (349, 61790), (370, 58283), (698, 30895), (835, 25826), (1670, 12913), (1745, 12358), (3490, 6179)]