71784489

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^2\times {\mathrm{557}}^1$

素因数の和:622

約数の個数: 48

約数和(自身を含む): 122456448

約数和(自身を除く): 50671959

約数列:

[1, 3, 7, 17, 19, 21, 51, 57, 119, 133, 323, 357, 361, 399, 557, 969, 1083, 1671, 2261, 2527, 3899, 6137, 6783, 7581, 9469, 10583, 11697, 18411, 28407, 31749, 42959, 66283, 74081, 128877, 179911, 198849, 201077, 222243, 539733, 603231, 1259377, 1407539, 3418309, 3778131, 4222617, 10254927, 23928163, 71784489]

約数ペア:

[(1, 71784489), (3, 23928163), (7, 10254927), (17, 4222617), (19, 3778131), (21, 3418309), (51, 1407539), (57, 1259377), (119, 603231), (133, 539733), (323, 222243), (357, 201077), (361, 198849), (399, 179911), (557, 128877), (969, 74081), (1083, 66283), (1671, 42959), (2261, 31749), (2527, 28407), (3899, 18411), (6137, 11697), (6783, 10583), (7581, 9469)]