21490897904

素因数分解:

$2^4\times 7^1\times {\mathrm{331}}^1\times {\mathrm{579707}}^1$

素因数の和:580053

約数の個数: 40

約数和(自身を含む): 47730837888

約数和(自身を除く): 26239939984

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 331, 662, 1324, 2317, 2648, 4634, 5296, 9268, 18536, 37072, 579707, 1159414, 2318828, 4057949, 4637656, 8115898, 9275312, 16231796, 32463592, 64927184, 191883017, 383766034, 767532068, 1343181119, 1535064136, 2686362238, 3070128272, 5372724476, 10745448952, 21490897904]

約数ペア:

[(1, 21490897904), (2, 10745448952), (4, 5372724476), (7, 3070128272), (8, 2686362238), (14, 1535064136), (16, 1343181119), (28, 767532068), (56, 383766034), (112, 191883017), (331, 64927184), (662, 32463592), (1324, 16231796), (2317, 9275312), (2648, 8115898), (4634, 4637656), (5296, 4057949), (9268, 2318828), (18536, 1159414), (37072, 579707)]