216890947

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{157}}^1$

素因数の和:260

約数の個数: 64

約数和(自身を含む): 305786880

約数和(自身を除く): 88895933

約数列:

[1, 7, 13, 17, 19, 47, 91, 119, 133, 157, 221, 247, 323, 329, 611, 799, 893, 1099, 1547, 1729, 2041, 2261, 2669, 2983, 4199, 4277, 5593, 6251, 7379, 10387, 11609, 14287, 15181, 18683, 20881, 29393, 34697, 38779, 50711, 51653, 72709, 81263, 95927, 106267, 125443, 140201, 197353, 242879, 271453, 354977, 659243, 671489, 878101, 981407, 1381471, 1630759, 1822613, 2383417, 4614701, 11415313, 12758291, 16683919, 30984421, 216890947]

約数ペア:

[(1, 216890947), (7, 30984421), (13, 16683919), (17, 12758291), (19, 11415313), (47, 4614701), (91, 2383417), (119, 1822613), (133, 1630759), (157, 1381471), (221, 981407), (247, 878101), (323, 671489), (329, 659243), (611, 354977), (799, 271453), (893, 242879), (1099, 197353), (1547, 140201), (1729, 125443), (2041, 106267), (2261, 95927), (2669, 81263), (2983, 72709), (4199, 51653), (4277, 50711), (5593, 38779), (6251, 34697), (7379, 29393), (10387, 20881), (11609, 18683), (14287, 15181)]