20890034

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{137}}^1\times {\mathrm{239}}^1$

素因数の和:418

約数の個数: 32

約数和(自身を含む): 35769600

約数和(自身を除く): 14879566

約数列:

[1, 2, 11, 22, 29, 58, 137, 239, 274, 319, 478, 638, 1507, 2629, 3014, 3973, 5258, 6931, 7946, 13862, 32743, 43703, 65486, 76241, 87406, 152482, 360173, 720346, 949547, 1899094, 10445017, 20890034]

約数ペア:

[(1, 20890034), (2, 10445017), (11, 1899094), (22, 949547), (29, 720346), (58, 360173), (137, 152482), (239, 87406), (274, 76241), (319, 65486), (478, 43703), (638, 32743), (1507, 13862), (2629, 7946), (3014, 6931), (3973, 5258)]