331209

素因数分解:

$3^5\times {\mathrm{29}}^1\times {\mathrm{47}}^1$

素因数の和:91

約数の個数: 24

約数和(自身を含む): 524160

約数和(自身を除く): 192951

約数列:

[1, 3, 9, 27, 29, 47, 81, 87, 141, 243, 261, 423, 783, 1269, 1363, 2349, 3807, 4089, 7047, 11421, 12267, 36801, 110403, 331209]

約数ペア:

[(1, 331209), (3, 110403), (9, 36801), (27, 12267), (29, 11421), (47, 7047), (81, 4089), (87, 3807), (141, 2349), (243, 1363), (261, 1269), (423, 783)]