20984766

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{317}}^1$

素因数の和:409

約数の個数: 64

約数和(自身を含む): 49455360

約数和(自身を除く): 28470594

約数列:

[1, 2, 3, 6, 11, 17, 22, 33, 34, 51, 59, 66, 102, 118, 177, 187, 317, 354, 374, 561, 634, 649, 951, 1003, 1122, 1298, 1902, 1947, 2006, 3009, 3487, 3894, 5389, 6018, 6974, 10461, 10778, 11033, 16167, 18703, 20922, 22066, 32334, 33099, 37406, 56109, 59279, 66198, 112218, 118558, 177837, 205733, 317951, 355674, 411466, 617199, 635902, 953853, 1234398, 1907706, 3497461, 6994922, 10492383, 20984766]

約数ペア:

[(1, 20984766), (2, 10492383), (3, 6994922), (6, 3497461), (11, 1907706), (17, 1234398), (22, 953853), (33, 635902), (34, 617199), (51, 411466), (59, 355674), (66, 317951), (102, 205733), (118, 177837), (177, 118558), (187, 112218), (317, 66198), (354, 59279), (374, 56109), (561, 37406), (634, 33099), (649, 32334), (951, 22066), (1003, 20922), (1122, 18703), (1298, 16167), (1902, 11033), (1947, 10778), (2006, 10461), (3009, 6974), (3487, 6018), (3894, 5389)]