661630389

素因数分解:

$3^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{155203}}^1$

素因数の和:155249

約数の個数: 24

約数和(自身を含む): 1061595360

約数和(自身を除く): 399964971

約数列:

[1, 3, 7, 21, 29, 49, 87, 147, 203, 609, 1421, 4263, 155203, 465609, 1086421, 3259263, 4500887, 7604947, 13502661, 22814841, 31506209, 94518627, 220543463, 661630389]

約数ペア:

[(1, 661630389), (3, 220543463), (7, 94518627), (21, 31506209), (29, 22814841), (49, 13502661), (87, 7604947), (147, 4500887), (203, 3259263), (609, 1086421), (1421, 465609), (4263, 155203)]