221490412

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{12491}}^1$

素因数の和:12550

約数の個数: 48

約数和(自身を含む): 470098944

約数和(自身を除く): 248608532

約数列:

[1, 2, 4, 11, 13, 22, 26, 31, 44, 52, 62, 124, 143, 286, 341, 403, 572, 682, 806, 1364, 1612, 4433, 8866, 12491, 17732, 24982, 49964, 137401, 162383, 274802, 324766, 387221, 549604, 649532, 774442, 1548884, 1786213, 3572426, 4259431, 5033873, 7144852, 8518862, 10067746, 17037724, 20135492, 55372603, 110745206, 221490412]

約数ペア:

[(1, 221490412), (2, 110745206), (4, 55372603), (11, 20135492), (13, 17037724), (22, 10067746), (26, 8518862), (31, 7144852), (44, 5033873), (52, 4259431), (62, 3572426), (124, 1786213), (143, 1548884), (286, 774442), (341, 649532), (403, 549604), (572, 387221), (682, 324766), (806, 274802), (1364, 162383), (1612, 137401), (4433, 49964), (8866, 24982), (12491, 17732)]