221405916

素因数分解:

$2^2\times 3^1\times {\mathrm{103}}^1\times {\mathrm{271}}^1\times {\mathrm{661}}^1$

素因数の和:1042

約数の個数: 48

約数和(自身を含む): 524346368

約数和(自身を除く): 302940452

約数列:

[1, 2, 3, 4, 6, 12, 103, 206, 271, 309, 412, 542, 618, 661, 813, 1084, 1236, 1322, 1626, 1983, 2644, 3252, 3966, 7932, 27913, 55826, 68083, 83739, 111652, 136166, 167478, 179131, 204249, 272332, 334956, 358262, 408498, 537393, 716524, 816996, 1074786, 2149572, 18450493, 36900986, 55351479, 73801972, 110702958, 221405916]

約数ペア:

[(1, 221405916), (2, 110702958), (3, 73801972), (4, 55351479), (6, 36900986), (12, 18450493), (103, 2149572), (206, 1074786), (271, 816996), (309, 716524), (412, 537393), (542, 408498), (618, 358262), (661, 334956), (813, 272332), (1084, 204249), (1236, 179131), (1322, 167478), (1626, 136166), (1983, 111652), (2644, 83739), (3252, 68083), (3966, 55826), (7932, 27913)]