21158020796

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{29}}^1\times {\mathrm{137}}^1\times {\mathrm{11003}}^1$

素因数の和:11195

約数の個数: 72

約数和(自身を含む): 42413157360

約数和(自身を除く): 21255136564

約数列:

[1, 2, 4, 11, 22, 29, 44, 58, 116, 121, 137, 242, 274, 319, 484, 548, 638, 1276, 1507, 3014, 3509, 3973, 6028, 7018, 7946, 11003, 14036, 15892, 16577, 22006, 33154, 43703, 44012, 66308, 87406, 121033, 174812, 242066, 319087, 480733, 484132, 638174, 961466, 1276348, 1331363, 1507411, 1922932, 2662726, 3014822, 3509957, 5325452, 6029644, 7019914, 14039828, 16581521, 33163042, 38609527, 43714919, 66326084, 77219054, 87429838, 154438108, 174859676, 182396731, 364793462, 480864109, 729586924, 961728218, 1923456436, 5289505199, 10579010398, 21158020796]

約数ペア:

[(1, 21158020796), (2, 10579010398), (4, 5289505199), (11, 1923456436), (22, 961728218), (29, 729586924), (44, 480864109), (58, 364793462), (116, 182396731), (121, 174859676), (137, 154438108), (242, 87429838), (274, 77219054), (319, 66326084), (484, 43714919), (548, 38609527), (638, 33163042), (1276, 16581521), (1507, 14039828), (3014, 7019914), (3509, 6029644), (3973, 5325452), (6028, 3509957), (7018, 3014822), (7946, 2662726), (11003, 1922932), (14036, 1507411), (15892, 1331363), (16577, 1276348), (22006, 961466), (33154, 638174), (43703, 484132), (44012, 480733), (66308, 319087), (87406, 242066), (121033, 174812)]