27984537

素因数分解:

$3^2\times 7^2\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1$

素因数の和:163

約数の個数: 72

約数和(自身を含む): 51217920

約数和(自身を除く): 23233383

約数列:

[1, 3, 7, 9, 21, 23, 31, 49, 63, 69, 89, 93, 147, 161, 207, 217, 267, 279, 441, 483, 623, 651, 713, 801, 1127, 1449, 1519, 1869, 1953, 2047, 2139, 2759, 3381, 4361, 4557, 4991, 5607, 6141, 6417, 8277, 10143, 13083, 13671, 14329, 14973, 18423, 19313, 24831, 34937, 39249, 42987, 44919, 57939, 63457, 100303, 104811, 128961, 135191, 173817, 190371, 300909, 314433, 405573, 444199, 571113, 902727, 1216719, 1332597, 3109393, 3997791, 9328179, 27984537]

約数ペア:

[(1, 27984537), (3, 9328179), (7, 3997791), (9, 3109393), (21, 1332597), (23, 1216719), (31, 902727), (49, 571113), (63, 444199), (69, 405573), (89, 314433), (93, 300909), (147, 190371), (161, 173817), (207, 135191), (217, 128961), (267, 104811), (279, 100303), (441, 63457), (483, 57939), (623, 44919), (651, 42987), (713, 39249), (801, 34937), (1127, 24831), (1449, 19313), (1519, 18423), (1869, 14973), (1953, 14329), (2047, 13671), (2139, 13083), (2759, 10143), (3381, 8277), (4361, 6417), (4557, 6141), (4991, 5607)]