21757792

素因数分解:

$2^5\times 7^1\times {\mathrm{137}}^1\times {\mathrm{709}}^1$

素因数の和:863

約数の個数: 48

約数和(自身を含む): 49381920

約数和(自身を除く): 27624128

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 112, 137, 224, 274, 548, 709, 959, 1096, 1418, 1918, 2192, 2836, 3836, 4384, 4963, 5672, 7672, 9926, 11344, 15344, 19852, 22688, 30688, 39704, 79408, 97133, 158816, 194266, 388532, 679931, 777064, 1359862, 1554128, 2719724, 3108256, 5439448, 10878896, 21757792]

約数ペア:

[(1, 21757792), (2, 10878896), (4, 5439448), (7, 3108256), (8, 2719724), (14, 1554128), (16, 1359862), (28, 777064), (32, 679931), (56, 388532), (112, 194266), (137, 158816), (224, 97133), (274, 79408), (548, 39704), (709, 30688), (959, 22688), (1096, 19852), (1418, 15344), (1918, 11344), (2192, 9926), (2836, 7672), (3836, 5672), (4384, 4963)]