21485898

素因数分解:

$2^1\times 3^4\times 7^1\times {\mathrm{18947}}^1$

素因数の和:18968

約数の個数: 40

約数和(自身を含む): 55024992

約数和(自身を除く): 33539094

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 81, 126, 162, 189, 378, 567, 1134, 18947, 37894, 56841, 113682, 132629, 170523, 265258, 341046, 397887, 511569, 795774, 1023138, 1193661, 1534707, 2387322, 3069414, 3580983, 7161966, 10742949, 21485898]

約数ペア:

[(1, 21485898), (2, 10742949), (3, 7161966), (6, 3580983), (7, 3069414), (9, 2387322), (14, 1534707), (18, 1193661), (21, 1023138), (27, 795774), (42, 511569), (54, 397887), (63, 341046), (81, 265258), (126, 170523), (162, 132629), (189, 113682), (378, 56841), (567, 37894), (1134, 18947)]