71324379

素因数分解:

$3^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{521}}^1$

素因数の和:628

約数の個数: 48

約数和(自身を含む): 123125184

約数和(自身を除く): 51800805

約数列:

[1, 3, 7, 9, 21, 41, 53, 63, 123, 159, 287, 369, 371, 477, 521, 861, 1113, 1563, 2173, 2583, 3339, 3647, 4689, 6519, 10941, 15211, 19557, 21361, 27613, 32823, 45633, 64083, 82839, 136899, 149527, 192249, 193291, 248517, 448581, 579873, 1132133, 1345743, 1739619, 3396399, 7924931, 10189197, 23774793, 71324379]

約数ペア:

[(1, 71324379), (3, 23774793), (7, 10189197), (9, 7924931), (21, 3396399), (41, 1739619), (53, 1345743), (63, 1132133), (123, 579873), (159, 448581), (287, 248517), (369, 193291), (371, 192249), (477, 149527), (521, 136899), (861, 82839), (1113, 64083), (1563, 45633), (2173, 32823), (2583, 27613), (3339, 21361), (3647, 19557), (4689, 15211), (6519, 10941)]