20109843

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1$

素因数の和:145

約数の個数: 64

約数和(自身を含む): 34836480

約数和(自身を除く): 14726637

約数列:

[1, 3, 9, 13, 23, 27, 39, 47, 53, 69, 117, 141, 159, 207, 299, 351, 423, 477, 611, 621, 689, 897, 1081, 1219, 1269, 1431, 1833, 2067, 2491, 2691, 3243, 3657, 5499, 6201, 7473, 8073, 9729, 10971, 14053, 15847, 16497, 18603, 22419, 29187, 32383, 32913, 42159, 47541, 57293, 67257, 97149, 126477, 142623, 171879, 291447, 379431, 427869, 515637, 744809, 874341, 1546911, 2234427, 6703281, 20109843]

約数ペア:

[(1, 20109843), (3, 6703281), (9, 2234427), (13, 1546911), (23, 874341), (27, 744809), (39, 515637), (47, 427869), (53, 379431), (69, 291447), (117, 171879), (141, 142623), (159, 126477), (207, 97149), (299, 67257), (351, 57293), (423, 47541), (477, 42159), (611, 32913), (621, 32383), (689, 29187), (897, 22419), (1081, 18603), (1219, 16497), (1269, 15847), (1431, 14053), (1833, 10971), (2067, 9729), (2491, 8073), (2691, 7473), (3243, 6201), (3657, 5499)]