121561881

素因数分解:

$3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{137}}^1$

素因数の和:254

約数の個数: 64

約数和(自身を含む): 203489280

約数和(自身を除く): 81927399

約数列:

[1, 3, 7, 21, 29, 31, 47, 87, 93, 137, 141, 203, 217, 329, 411, 609, 651, 899, 959, 987, 1363, 1457, 2697, 2877, 3973, 4089, 4247, 4371, 6293, 6439, 9541, 10199, 11919, 12741, 18879, 19317, 27811, 28623, 29729, 30597, 42253, 45073, 83433, 89187, 123163, 126759, 135219, 186731, 199609, 295771, 369489, 560193, 598827, 862141, 887313, 1307117, 1397263, 2586423, 3921351, 4191789, 5788661, 17365983, 40520627, 121561881]

約数ペア:

[(1, 121561881), (3, 40520627), (7, 17365983), (21, 5788661), (29, 4191789), (31, 3921351), (47, 2586423), (87, 1397263), (93, 1307117), (137, 887313), (141, 862141), (203, 598827), (217, 560193), (329, 369489), (411, 295771), (609, 199609), (651, 186731), (899, 135219), (959, 126759), (987, 123163), (1363, 89187), (1457, 83433), (2697, 45073), (2877, 42253), (3973, 30597), (4089, 29729), (4247, 28623), (4371, 27811), (6293, 19317), (6439, 18879), (9541, 12741), (10199, 11919)]