21999796

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{3181}}^1$

素因数の和:3224

約数の個数: 48

約数和(自身を含む): 49893760

約数和(自身を除く): 27893964

約数列:

[1, 2, 4, 7, 13, 14, 19, 26, 28, 38, 52, 76, 91, 133, 182, 247, 266, 364, 494, 532, 988, 1729, 3181, 3458, 6362, 6916, 12724, 22267, 41353, 44534, 60439, 82706, 89068, 120878, 165412, 241756, 289471, 423073, 578942, 785707, 846146, 1157884, 1571414, 1692292, 3142828, 5499949, 10999898, 21999796]

約数ペア:

[(1, 21999796), (2, 10999898), (4, 5499949), (7, 3142828), (13, 1692292), (14, 1571414), (19, 1157884), (26, 846146), (28, 785707), (38, 578942), (52, 423073), (76, 289471), (91, 241756), (133, 165412), (182, 120878), (247, 89068), (266, 82706), (364, 60439), (494, 44534), (532, 41353), (988, 22267), (1729, 12724), (3181, 6916), (3458, 6362)]