21811994644

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{397}}^1\times {\mathrm{1021}}^1\times {\mathrm{1223}}^1$

素因数の和:2656

約数の個数: 48

約数和(自身を含む): 41821024896

約数和(自身を除く): 20009030252

約数列:

[1, 2, 4, 11, 22, 44, 397, 794, 1021, 1223, 1588, 2042, 2446, 4084, 4367, 4892, 8734, 11231, 13453, 17468, 22462, 26906, 44924, 53812, 405337, 485531, 810674, 971062, 1248683, 1621348, 1942124, 2497366, 4458707, 4994732, 5340841, 8917414, 10681682, 13735513, 17834828, 21363364, 27471026, 54942052, 495727151, 991454302, 1982908604, 5452998661, 10905997322, 21811994644]

約数ペア:

[(1, 21811994644), (2, 10905997322), (4, 5452998661), (11, 1982908604), (22, 991454302), (44, 495727151), (397, 54942052), (794, 27471026), (1021, 21363364), (1223, 17834828), (1588, 13735513), (2042, 10681682), (2446, 8917414), (4084, 5340841), (4367, 4994732), (4892, 4458707), (8734, 2497366), (11231, 1942124), (13453, 1621348), (17468, 1248683), (22462, 971062), (26906, 810674), (44924, 485531), (53812, 405337)]