21546741

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{59}}^1\times {\mathrm{149}}^1$

素因数の和:273

約数の個数: 32

約数和(自身を含む): 31680000

約数和(自身を除く): 10133259

約数列:

[1, 3, 19, 43, 57, 59, 129, 149, 177, 447, 817, 1121, 2451, 2537, 2831, 3363, 6407, 7611, 8493, 8791, 19221, 26373, 48203, 121733, 144609, 167029, 365199, 378013, 501087, 1134039, 7182247, 21546741]

約数ペア:

[(1, 21546741), (3, 7182247), (19, 1134039), (43, 501087), (57, 378013), (59, 365199), (129, 167029), (149, 144609), (177, 121733), (447, 48203), (817, 26373), (1121, 19221), (2451, 8791), (2537, 8493), (2831, 7611), (3363, 6407)]