21729884

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{179}}^1$

素因数の和:314

約数の個数: 48

約数和(自身を含む): 43545600

約数和(自身を除く): 21815716

約数列:

[1, 2, 4, 11, 22, 31, 44, 62, 89, 124, 178, 179, 341, 356, 358, 682, 716, 979, 1364, 1958, 1969, 2759, 3916, 3938, 5518, 5549, 7876, 11036, 11098, 15931, 22196, 30349, 31862, 60698, 61039, 63724, 121396, 122078, 175241, 244156, 350482, 493861, 700964, 987722, 1975444, 5432471, 10864942, 21729884]

約数ペア:

[(1, 21729884), (2, 10864942), (4, 5432471), (11, 1975444), (22, 987722), (31, 700964), (44, 493861), (62, 350482), (89, 244156), (124, 175241), (178, 122078), (179, 121396), (341, 63724), (356, 61039), (358, 60698), (682, 31862), (716, 30349), (979, 22196), (1364, 15931), (1958, 11098), (1969, 11036), (2759, 7876), (3916, 5549), (3938, 5518)]