201811407

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{21991}}^1$

素因数の和:22043

約数の個数: 32

約数和(自身を含む): 337797120

約数和(自身を除く): 135985713

約数列:

[1, 3, 7, 19, 21, 23, 57, 69, 133, 161, 399, 437, 483, 1311, 3059, 9177, 21991, 65973, 153937, 417829, 461811, 505793, 1253487, 1517379, 2924803, 3540551, 8774409, 9610067, 10621653, 28830201, 67270469, 201811407]

約数ペア:

[(1, 201811407), (3, 67270469), (7, 28830201), (19, 10621653), (21, 9610067), (23, 8774409), (57, 3540551), (69, 2924803), (133, 1517379), (161, 1253487), (399, 505793), (437, 461811), (483, 417829), (1311, 153937), (3059, 65973), (9177, 21991)]