21167772687

素因数分解:

$3^4\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{138197}}^1$

素因数の和:138301

約数の個数: 40

約数和(自身を含む): 33176364672

約数和(自身を除く): 12008591985

約数列:

[1, 3, 9, 27, 31, 61, 81, 93, 183, 279, 549, 837, 1647, 1891, 2511, 4941, 5673, 17019, 51057, 138197, 153171, 414591, 1243773, 3731319, 4284107, 8430017, 11193957, 12852321, 25290051, 38556963, 75870153, 115670889, 227610459, 261330527, 347012667, 682831377, 783991581, 2351974743, 7055924229, 21167772687]

約数ペア:

[(1, 21167772687), (3, 7055924229), (9, 2351974743), (27, 783991581), (31, 682831377), (61, 347012667), (81, 261330527), (93, 227610459), (183, 115670889), (279, 75870153), (549, 38556963), (837, 25290051), (1647, 12852321), (1891, 11193957), (2511, 8430017), (4941, 4284107), (5673, 3731319), (17019, 1243773), (51057, 414591), (138197, 153171)]