21165970

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{4513}}^1$

素因数の和:4594

約数の個数: 32

約数和(自身を含む): 44201088

約数和(自身を除く): 23035118

約数列:

[1, 2, 5, 7, 10, 14, 35, 67, 70, 134, 335, 469, 670, 938, 2345, 4513, 4690, 9026, 22565, 31591, 45130, 63182, 157955, 302371, 315910, 604742, 1511855, 2116597, 3023710, 4233194, 10582985, 21165970]

約数ペア:

[(1, 21165970), (2, 10582985), (5, 4233194), (7, 3023710), (10, 2116597), (14, 1511855), (35, 604742), (67, 315910), (70, 302371), (134, 157955), (335, 63182), (469, 45130), (670, 31591), (938, 22565), (2345, 9026), (4513, 4690)]