153328221

素因数分解:

$3^4\times {\mathrm{89}}^1\times {\mathrm{21269}}^1$

素因数の和:21370

約数の個数: 20

約数和(自身を含む): 231630300

約数和(自身を除く): 78302079

約数列:

[1, 3, 9, 27, 81, 89, 267, 801, 2403, 7209, 21269, 63807, 191421, 574263, 1722789, 1892941, 5678823, 17036469, 51109407, 153328221]

約数ペア:

[(1, 153328221), (3, 51109407), (9, 17036469), (27, 5678823), (81, 1892941), (89, 1722789), (267, 574263), (801, 191421), (2403, 63807), (7209, 21269)]