21911538

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{331}}^1$

素因数の和:423

約数の個数: 64

約数和(自身を含む): 51632640

約数和(自身を除く): 29721102

約数列:

[1, 2, 3, 6, 11, 17, 22, 33, 34, 51, 59, 66, 102, 118, 177, 187, 331, 354, 374, 561, 649, 662, 993, 1003, 1122, 1298, 1947, 1986, 2006, 3009, 3641, 3894, 5627, 6018, 7282, 10923, 11033, 11254, 16881, 19529, 21846, 22066, 33099, 33762, 39058, 58587, 61897, 66198, 117174, 123794, 185691, 214819, 331993, 371382, 429638, 644457, 663986, 995979, 1288914, 1991958, 3651923, 7303846, 10955769, 21911538]

約数ペア:

[(1, 21911538), (2, 10955769), (3, 7303846), (6, 3651923), (11, 1991958), (17, 1288914), (22, 995979), (33, 663986), (34, 644457), (51, 429638), (59, 371382), (66, 331993), (102, 214819), (118, 185691), (177, 123794), (187, 117174), (331, 66198), (354, 61897), (374, 58587), (561, 39058), (649, 33762), (662, 33099), (993, 22066), (1003, 21846), (1122, 19529), (1298, 16881), (1947, 11254), (1986, 11033), (2006, 10923), (3009, 7282), (3641, 6018), (3894, 5627)]