639771834

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{211}}^1\times {\mathrm{38873}}^1$

素因数の和:39102

約数の個数: 32

約数和(自身を含む): 1384536384

約数和(自身を除く): 744764550

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 211, 422, 633, 1266, 2743, 5486, 8229, 16458, 38873, 77746, 116619, 233238, 505349, 1010698, 1516047, 3032094, 8202203, 16404406, 24606609, 49213218, 106628639, 213257278, 319885917, 639771834]

約数ペア:

[(1, 639771834), (2, 319885917), (3, 213257278), (6, 106628639), (13, 49213218), (26, 24606609), (39, 16404406), (78, 8202203), (211, 3032094), (422, 1516047), (633, 1010698), (1266, 505349), (2743, 233238), (5486, 116619), (8229, 77746), (16458, 38873)]