20945792

素因数分解:

$2^7\times 7^1\times {\mathrm{97}}^1\times {\mathrm{241}}^1$

素因数の和:359

約数の個数: 64

約数和(自身を含む): 48380640

約数和(自身を除く): 27434848

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 97, 112, 128, 194, 224, 241, 388, 448, 482, 679, 776, 896, 964, 1358, 1552, 1687, 1928, 2716, 3104, 3374, 3856, 5432, 6208, 6748, 7712, 10864, 12416, 13496, 15424, 21728, 23377, 26992, 30848, 43456, 46754, 53984, 86912, 93508, 107968, 163639, 187016, 215936, 327278, 374032, 654556, 748064, 1309112, 1496128, 2618224, 2992256, 5236448, 10472896, 20945792]

約数ペア:

[(1, 20945792), (2, 10472896), (4, 5236448), (7, 2992256), (8, 2618224), (14, 1496128), (16, 1309112), (28, 748064), (32, 654556), (56, 374032), (64, 327278), (97, 215936), (112, 187016), (128, 163639), (194, 107968), (224, 93508), (241, 86912), (388, 53984), (448, 46754), (482, 43456), (679, 30848), (776, 26992), (896, 23377), (964, 21728), (1358, 15424), (1552, 13496), (1687, 12416), (1928, 10864), (2716, 7712), (3104, 6748), (3374, 6208), (3856, 5432)]