21669585

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{4391}}^1$

素因数の和:4453

約数の個数: 32

約数和(自身を含む): 40476672

約数和(自身を除く): 18807087

約数列:

[1, 3, 5, 7, 15, 21, 35, 47, 105, 141, 235, 329, 705, 987, 1645, 4391, 4935, 13173, 21955, 30737, 65865, 92211, 153685, 206377, 461055, 619131, 1031885, 1444639, 3095655, 4333917, 7223195, 21669585]

約数ペア:

[(1, 21669585), (3, 7223195), (5, 4333917), (7, 3095655), (15, 1444639), (21, 1031885), (35, 619131), (47, 461055), (105, 206377), (141, 153685), (235, 92211), (329, 65865), (705, 30737), (987, 21955), (1645, 13173), (4391, 4935)]