21604797

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{59}}^1\times {\mathrm{61}}^1$

素因数の和:178

約数の個数: 48

約数和(自身を含む): 34819200

約数和(自身を除く): 13214403

約数列:

[1, 3, 9, 23, 29, 59, 61, 69, 87, 177, 183, 207, 261, 531, 549, 667, 1357, 1403, 1711, 1769, 2001, 3599, 4071, 4209, 5133, 5307, 6003, 10797, 12213, 12627, 15399, 15921, 32391, 39353, 40687, 82777, 104371, 118059, 122061, 248331, 313113, 354177, 366183, 744993, 939339, 2400533, 7201599, 21604797]

約数ペア:

[(1, 21604797), (3, 7201599), (9, 2400533), (23, 939339), (29, 744993), (59, 366183), (61, 354177), (69, 313113), (87, 248331), (177, 122061), (183, 118059), (207, 104371), (261, 82777), (531, 40687), (549, 39353), (667, 32391), (1357, 15921), (1403, 15399), (1711, 12627), (1769, 12213), (2001, 10797), (3599, 6003), (4071, 5307), (4209, 5133)]