21812319

素因数分解:

$3^2\times {\mathrm{61}}^1\times {\mathrm{67}}^1\times {\mathrm{593}}^1$

素因数の和:727

約数の個数: 24

約数和(自身を含む): 32555952

約数和(自身を除く): 10743633

約数列:

[1, 3, 9, 61, 67, 183, 201, 549, 593, 603, 1779, 4087, 5337, 12261, 36173, 36783, 39731, 108519, 119193, 325557, 357579, 2423591, 7270773, 21812319]

約数ペア:

[(1, 21812319), (3, 7270773), (9, 2423591), (61, 357579), (67, 325557), (183, 119193), (201, 108519), (549, 39731), (593, 36783), (603, 36173), (1779, 12261), (4087, 5337)]