21124773

素因数分解:

$3^3\times {\mathrm{59}}^1\times {\mathrm{89}}^1\times {\mathrm{149}}^1$

素因数の和:306

約数の個数: 32

約数和(自身を含む): 32400000

約数和(自身を除く): 11275227

約数列:

[1, 3, 9, 27, 59, 89, 149, 177, 267, 447, 531, 801, 1341, 1593, 2403, 4023, 5251, 8791, 13261, 15753, 26373, 39783, 47259, 79119, 119349, 141777, 237357, 358047, 782399, 2347197, 7041591, 21124773]

約数ペア:

[(1, 21124773), (3, 7041591), (9, 2347197), (27, 782399), (59, 358047), (89, 237357), (149, 141777), (177, 119349), (267, 79119), (447, 47259), (531, 39783), (801, 26373), (1341, 15753), (1593, 13261), (2403, 8791), (4023, 5251)]