21587892

素因数分解:

$2^2\times 3^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{107}}^1$

素因数の和:197

約数の個数: 96

約数和(自身を含む): 57480192

約数和(自身を除く): 35892300

約数列:

[1, 2, 3, 4, 6, 12, 17, 23, 34, 43, 46, 51, 68, 69, 86, 92, 102, 107, 129, 138, 172, 204, 214, 258, 276, 321, 391, 428, 516, 642, 731, 782, 989, 1173, 1284, 1462, 1564, 1819, 1978, 2193, 2346, 2461, 2924, 2967, 3638, 3956, 4386, 4601, 4692, 4922, 5457, 5934, 7276, 7383, 8772, 9202, 9844, 10914, 11868, 13803, 14766, 16813, 18404, 21828, 27606, 29532, 33626, 41837, 50439, 55212, 67252, 78217, 83674, 100878, 105823, 125511, 156434, 167348, 201756, 211646, 234651, 251022, 312868, 317469, 423292, 469302, 502044, 634938, 938604, 1269876, 1798991, 3597982, 5396973, 7195964, 10793946, 21587892]

約数ペア:

[(1, 21587892), (2, 10793946), (3, 7195964), (4, 5396973), (6, 3597982), (12, 1798991), (17, 1269876), (23, 938604), (34, 634938), (43, 502044), (46, 469302), (51, 423292), (68, 317469), (69, 312868), (86, 251022), (92, 234651), (102, 211646), (107, 201756), (129, 167348), (138, 156434), (172, 125511), (204, 105823), (214, 100878), (258, 83674), (276, 78217), (321, 67252), (391, 55212), (428, 50439), (516, 41837), (642, 33626), (731, 29532), (782, 27606), (989, 21828), (1173, 18404), (1284, 16813), (1462, 14766), (1564, 13803), (1819, 11868), (1978, 10914), (2193, 9844), (2346, 9202), (2461, 8772), (2924, 7383), (2967, 7276), (3638, 5934), (3956, 5457), (4386, 4922), (4601, 4692)]