21963753

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{311}}^1$

素因数の和:402

約数の個数: 48

約数和(自身を含む): 38937600

約数和(自身を除く): 16973847

約数列:

[1, 3, 7, 9, 19, 21, 57, 59, 63, 133, 171, 177, 311, 399, 413, 531, 933, 1121, 1197, 1239, 2177, 2799, 3363, 3717, 5909, 6531, 7847, 10089, 17727, 18349, 19593, 23541, 41363, 53181, 55047, 70623, 124089, 128443, 165141, 348631, 372267, 385329, 1045893, 1155987, 2440417, 3137679, 7321251, 21963753]

約数ペア:

[(1, 21963753), (3, 7321251), (7, 3137679), (9, 2440417), (19, 1155987), (21, 1045893), (57, 385329), (59, 372267), (63, 348631), (133, 165141), (171, 128443), (177, 124089), (311, 70623), (399, 55047), (413, 53181), (531, 41363), (933, 23541), (1121, 19593), (1197, 18349), (1239, 17727), (2177, 10089), (2799, 7847), (3363, 6531), (3717, 5909)]