21307338

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{107}}^1$

素因数の和:188

約数の個数: 96

約数和(自身を含む): 53778816

約数和(自身を除く): 32471478

約数列:

[1, 2, 3, 6, 9, 13, 18, 23, 26, 37, 39, 46, 69, 74, 78, 107, 111, 117, 138, 207, 214, 222, 234, 299, 321, 333, 414, 481, 598, 642, 666, 851, 897, 962, 963, 1391, 1443, 1702, 1794, 1926, 2461, 2553, 2691, 2782, 2886, 3959, 4173, 4329, 4922, 5106, 5382, 7383, 7659, 7918, 8346, 8658, 11063, 11877, 12519, 14766, 15318, 22126, 22149, 23754, 25038, 31993, 33189, 35631, 44298, 51467, 63986, 66378, 71262, 91057, 95979, 99567, 102934, 154401, 182114, 191958, 199134, 273171, 287937, 308802, 463203, 546342, 575874, 819513, 926406, 1183741, 1639026, 2367482, 3551223, 7102446, 10653669, 21307338]

約数ペア:

[(1, 21307338), (2, 10653669), (3, 7102446), (6, 3551223), (9, 2367482), (13, 1639026), (18, 1183741), (23, 926406), (26, 819513), (37, 575874), (39, 546342), (46, 463203), (69, 308802), (74, 287937), (78, 273171), (107, 199134), (111, 191958), (117, 182114), (138, 154401), (207, 102934), (214, 99567), (222, 95979), (234, 91057), (299, 71262), (321, 66378), (333, 63986), (414, 51467), (481, 44298), (598, 35631), (642, 33189), (666, 31993), (851, 25038), (897, 23754), (962, 22149), (963, 22126), (1391, 15318), (1443, 14766), (1702, 12519), (1794, 11877), (1926, 11063), (2461, 8658), (2553, 8346), (2691, 7918), (2782, 7659), (2886, 7383), (3959, 5382), (4173, 5106), (4329, 4922)]