21204942

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{229}}^1$

素因数の和:329

約数の個数: 64

約数和(自身を含む): 49282560

約数和(自身を除く): 28077618

約数列:

[1, 2, 3, 6, 11, 22, 23, 33, 46, 61, 66, 69, 122, 138, 183, 229, 253, 366, 458, 506, 671, 687, 759, 1342, 1374, 1403, 1518, 2013, 2519, 2806, 4026, 4209, 5038, 5267, 7557, 8418, 10534, 13969, 15114, 15433, 15801, 27938, 30866, 31602, 41907, 46299, 57937, 83814, 92598, 115874, 153659, 173811, 307318, 321287, 347622, 460977, 642574, 921954, 963861, 1927722, 3534157, 7068314, 10602471, 21204942]

約数ペア:

[(1, 21204942), (2, 10602471), (3, 7068314), (6, 3534157), (11, 1927722), (22, 963861), (23, 921954), (33, 642574), (46, 460977), (61, 347622), (66, 321287), (69, 307318), (122, 173811), (138, 153659), (183, 115874), (229, 92598), (253, 83814), (366, 57937), (458, 46299), (506, 41907), (671, 31602), (687, 30866), (759, 27938), (1342, 15801), (1374, 15433), (1403, 15114), (1518, 13969), (2013, 10534), (2519, 8418), (2806, 7557), (4026, 5267), (4209, 5038)]