21010955

素因数分解:

$5^1\times 7^2\times {\mathrm{191}}^1\times {\mathrm{449}}^1$

素因数の和:659

約数の個数: 24

約数和(自身を含む): 29548800

約数和(自身を除く): 8537845

約数列:

[1, 5, 7, 35, 49, 191, 245, 449, 955, 1337, 2245, 3143, 6685, 9359, 15715, 22001, 46795, 85759, 110005, 428795, 600313, 3001565, 4202191, 21010955]

約数ペア:

[(1, 21010955), (5, 4202191), (7, 3001565), (35, 600313), (49, 428795), (191, 110005), (245, 85759), (449, 46795), (955, 22001), (1337, 15715), (2245, 9359), (3143, 6685)]