21320684

素因数分解:

$2^2\times 7^2\times {\mathrm{11}}^2\times {\mathrm{29}}^1\times {\mathrm{31}}^1$

素因数の和:100

約数の個数: 108

約数和(自身を含む): 50944320

約数和(自身を除く): 29623636

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 29, 31, 44, 49, 58, 62, 77, 98, 116, 121, 124, 154, 196, 203, 217, 242, 308, 319, 341, 406, 434, 484, 539, 638, 682, 812, 847, 868, 899, 1078, 1276, 1364, 1421, 1519, 1694, 1798, 2156, 2233, 2387, 2842, 3038, 3388, 3509, 3596, 3751, 4466, 4774, 5684, 5929, 6076, 6293, 7018, 7502, 8932, 9548, 9889, 11858, 12586, 14036, 15004, 15631, 16709, 19778, 23716, 24563, 25172, 26257, 31262, 33418, 39556, 44051, 49126, 52514, 62524, 66836, 69223, 88102, 98252, 105028, 108779, 138446, 171941, 176204, 183799, 217558, 276892, 343882, 367598, 435116, 484561, 687764, 735196, 761453, 969122, 1522906, 1938244, 3045812, 5330171, 10660342, 21320684]

約数ペア:

[(1, 21320684), (2, 10660342), (4, 5330171), (7, 3045812), (11, 1938244), (14, 1522906), (22, 969122), (28, 761453), (29, 735196), (31, 687764), (44, 484561), (49, 435116), (58, 367598), (62, 343882), (77, 276892), (98, 217558), (116, 183799), (121, 176204), (124, 171941), (154, 138446), (196, 108779), (203, 105028), (217, 98252), (242, 88102), (308, 69223), (319, 66836), (341, 62524), (406, 52514), (434, 49126), (484, 44051), (539, 39556), (638, 33418), (682, 31262), (812, 26257), (847, 25172), (868, 24563), (899, 23716), (1078, 19778), (1276, 16709), (1364, 15631), (1421, 15004), (1519, 14036), (1694, 12586), (1798, 11858), (2156, 9889), (2233, 9548), (2387, 8932), (2842, 7502), (3038, 7018), (3388, 6293), (3509, 6076), (3596, 5929), (3751, 5684), (4466, 4774)]