21549213

素因数分解:

$3^3\times 7^1\times {\mathrm{113}}^1\times {\mathrm{1009}}^1$

素因数の和:1138

約数の個数: 32

約数和(自身を含む): 36844800

約数和(自身を除く): 15295587

約数列:

[1, 3, 7, 9, 21, 27, 63, 113, 189, 339, 791, 1009, 1017, 2373, 3027, 3051, 7063, 7119, 9081, 21189, 21357, 27243, 63567, 114017, 190701, 342051, 798119, 1026153, 2394357, 3078459, 7183071, 21549213]

約数ペア:

[(1, 21549213), (3, 7183071), (7, 3078459), (9, 2394357), (21, 1026153), (27, 798119), (63, 342051), (113, 190701), (189, 114017), (339, 63567), (791, 27243), (1009, 21357), (1017, 21189), (2373, 9081), (3027, 7119), (3051, 7063)]