21029778

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{15173}}^1$

素因数の和:15199

約数の個数: 48

約数和(自身を含む): 56811456

約数和(自身を除く): 35781678

約数列:

[1, 2, 3, 6, 7, 9, 11, 14, 18, 21, 22, 33, 42, 63, 66, 77, 99, 126, 154, 198, 231, 462, 693, 1386, 15173, 30346, 45519, 91038, 106211, 136557, 166903, 212422, 273114, 318633, 333806, 500709, 637266, 955899, 1001418, 1168321, 1502127, 1911798, 2336642, 3004254, 3504963, 7009926, 10514889, 21029778]

約数ペア:

[(1, 21029778), (2, 10514889), (3, 7009926), (6, 3504963), (7, 3004254), (9, 2336642), (11, 1911798), (14, 1502127), (18, 1168321), (21, 1001418), (22, 955899), (33, 637266), (42, 500709), (63, 333806), (66, 318633), (77, 273114), (99, 212422), (126, 166903), (154, 136557), (198, 106211), (231, 91038), (462, 45519), (693, 30346), (1386, 15173)]