21195524

素因数分解:

$2^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{499}}^1$

素因数の和:588

約数の個数: 48

約数和(自身を含む): 44688000

約数和(自身を除く): 23492476

約数列:

[1, 2, 4, 7, 14, 28, 37, 41, 74, 82, 148, 164, 259, 287, 499, 518, 574, 998, 1036, 1148, 1517, 1996, 3034, 3493, 6068, 6986, 10619, 13972, 18463, 20459, 21238, 36926, 40918, 42476, 73852, 81836, 129241, 143213, 258482, 286426, 516964, 572852, 756983, 1513966, 3027932, 5298881, 10597762, 21195524]

約数ペア:

[(1, 21195524), (2, 10597762), (4, 5298881), (7, 3027932), (14, 1513966), (28, 756983), (37, 572852), (41, 516964), (74, 286426), (82, 258482), (148, 143213), (164, 129241), (259, 81836), (287, 73852), (499, 42476), (518, 40918), (574, 36926), (998, 21238), (1036, 20459), (1148, 18463), (1517, 13972), (1996, 10619), (3034, 6986), (3493, 6068)]