9886821

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{349}}^1$

素因数の和:449

約数の個数: 32

約数和(自身を含む): 16128000

約数和(自身を除く): 6241179

約数列:

[1, 3, 7, 19, 21, 57, 71, 133, 213, 349, 399, 497, 1047, 1349, 1491, 2443, 4047, 6631, 7329, 9443, 19893, 24779, 28329, 46417, 74337, 139251, 173453, 470801, 520359, 1412403, 3295607, 9886821]

約数ペア:

[(1, 9886821), (3, 3295607), (7, 1412403), (19, 520359), (21, 470801), (57, 173453), (71, 139251), (133, 74337), (213, 46417), (349, 28329), (399, 24779), (497, 19893), (1047, 9443), (1349, 7329), (1491, 6631), (2443, 4047)]