21738064

素因数分解:

$2^4\times {\mathrm{47}}^1\times {\mathrm{137}}^1\times {\mathrm{211}}^1$

素因数の和:403

約数の個数: 40

約数和(自身を含む): 43532928

約数和(自身を除く): 21794864

約数列:

[1, 2, 4, 8, 16, 47, 94, 137, 188, 211, 274, 376, 422, 548, 752, 844, 1096, 1688, 2192, 3376, 6439, 9917, 12878, 19834, 25756, 28907, 39668, 51512, 57814, 79336, 103024, 115628, 158672, 231256, 462512, 1358629, 2717258, 5434516, 10869032, 21738064]

約数ペア:

[(1, 21738064), (2, 10869032), (4, 5434516), (8, 2717258), (16, 1358629), (47, 462512), (94, 231256), (137, 158672), (188, 115628), (211, 103024), (274, 79336), (376, 57814), (422, 51512), (548, 39668), (752, 28907), (844, 25756), (1096, 19834), (1688, 12878), (2192, 9917), (3376, 6439)]