218153551

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{199}}^1\times {\mathrm{619}}^1$

素因数の和:859

約数の個数: 32

約数和(自身を含む): 285696000

約数和(自身を除く): 67542449

約数列:

[1, 7, 11, 23, 77, 161, 199, 253, 619, 1393, 1771, 2189, 4333, 4577, 6809, 14237, 15323, 32039, 47663, 50347, 99659, 123181, 156607, 352429, 862267, 1096249, 1354991, 2833163, 9484937, 19832141, 31164793, 218153551]

約数ペア:

[(1, 218153551), (7, 31164793), (11, 19832141), (23, 9484937), (77, 2833163), (161, 1354991), (199, 1096249), (253, 862267), (619, 352429), (1393, 156607), (1771, 123181), (2189, 99659), (4333, 50347), (4577, 47663), (6809, 32039), (14237, 15323)]