279949761

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{20107}}^1$

素因数の和:20150

約数の個数: 48

約数和(自身を含む): 526990464

約数和(自身を除く): 247040703

約数列:

[1, 3, 7, 9, 13, 17, 21, 39, 51, 63, 91, 117, 119, 153, 221, 273, 357, 663, 819, 1071, 1547, 1989, 4641, 13923, 20107, 60321, 140749, 180963, 261391, 341819, 422247, 784173, 1025457, 1266741, 1829737, 2352519, 2392733, 3076371, 4443647, 5489211, 7178199, 13330941, 16467633, 21534597, 31105529, 39992823, 93316587, 279949761]

約数ペア:

[(1, 279949761), (3, 93316587), (7, 39992823), (9, 31105529), (13, 21534597), (17, 16467633), (21, 13330941), (39, 7178199), (51, 5489211), (63, 4443647), (91, 3076371), (117, 2392733), (119, 2352519), (153, 1829737), (221, 1266741), (273, 1025457), (357, 784173), (663, 422247), (819, 341819), (1071, 261391), (1547, 180963), (1989, 140749), (4641, 60321), (13923, 20107)]