421449

素因数分解:

$3^1\times 7^2\times {\mathrm{47}}^1\times {\mathrm{61}}^1$

素因数の和:125

約数の個数: 24

約数和(自身を含む): 678528

約数和(自身を除く): 257079

約数列:

[1, 3, 7, 21, 47, 49, 61, 141, 147, 183, 329, 427, 987, 1281, 2303, 2867, 2989, 6909, 8601, 8967, 20069, 60207, 140483, 421449]

約数ペア:

[(1, 421449), (3, 140483), (7, 60207), (21, 20069), (47, 8967), (49, 8601), (61, 6909), (141, 2989), (147, 2867), (183, 2303), (329, 1281), (427, 987)]