28923909

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{1021}}^1$

素因数の和:1121

約数の個数: 32

約数和(自身を含む): 47093760

約数和(自身を除く): 18169851

約数列:

[1, 3, 7, 19, 21, 57, 71, 133, 213, 399, 497, 1021, 1349, 1491, 3063, 4047, 7147, 9443, 19399, 21441, 28329, 58197, 72491, 135793, 217473, 407379, 507437, 1377329, 1522311, 4131987, 9641303, 28923909]

約数ペア:

[(1, 28923909), (3, 9641303), (7, 4131987), (19, 1522311), (21, 1377329), (57, 507437), (71, 407379), (133, 217473), (213, 135793), (399, 72491), (497, 58197), (1021, 28329), (1349, 21441), (1491, 19399), (3063, 9443), (4047, 7147)]